The name Achish in Hebrew letters is אכיש. Below: how its number adds up, which page of the Torah it falls on and what verse stands there. Everything is computed, nothing is guessed.
אכיש
In short
Your name in Hebrew letters is אכיש. A Tanakh name: a Philistine king (first in 1 Samuel 21:11; 21 mentions in the Tanakh). Adding up the numbers of its letters gives 331 — the same as the Torah word שאל, “to ask”. That number points to Torah page 331 of 354 — in the portion Ki Teitzei. What that portion is about: “When you go out”: seventy-four commandments — the bird's nest, honest weights, divorce, remembering Amalek. The verse that begins with the first letter of your name and ends with the last is Genesis 46:15. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Achish” — this exact spelling is what was calculated: אכיש. A name from the Tanakh — its Tanakh spelling is used. If your name is spelled differently, correct the Hebrew spelling and the report is recomputed.
Adding up the letters of the name אכיש gives 331.
331
The number 331 is the Torah word שאל — «to ask» (Genesis 24:47).
Thou shalt not see thy brother's ass or his ox fallen down by the way, and hide thyself from them; thou shalt surely help him to lift them up again.
This is from the portion Ki Teitzei. What it is about: “When you go out”: seventy-four commandments — the bird's nest, honest weights, divorce, remembering Amalek.
The same number, 331, is given by these Tanakh names:
Ephraim אפרים
Other ways of counting
The tradition counts the same name in several ways. The main one is above: each letter is its number. The other eight are old and checkable too; each gives its own number, and many of them have a Torah word with the same number.
Final letters as 500–900 (mispar gadol) — 331. A Torah word with the same number is שאל — “to ask” (Genesis 24:47).
Reduced, each letter to one digit (mispar katan) — 7. A Torah word with the same number is או — “or” (Genesis 24:49).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 43. A Torah word with the same number is גם — “also” (Genesis 3:6).
Cumulative: a letter plus all letters before it (mispar kidmi) — 1226.
Squares of the letter values (mispar perati) — 90501.
Building: the sum grows with each letter (mispar bone’eh) — 384. A Torah word with the same number is משלוח — “undertaking of the hand” (Deuteronomy 12:7).
The letters that come out are תלמב — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 472. A Torah word with the same number is עבת — “cord, twisted work” (Exodus 28:14).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 591. A Torah word with the same number is תקופה — “turn of the year” (Exodus 34:22).
The number 331 appears in the classical books 9 times across 7 works. The earliest mention is בעל הטורים על התורה (~1300).
Every letter of the name explained, the words and namesakes with references, the Hebrew date, the letter and tribe of the month, day 861 of your life (±1), the psalm by age, the attestations from the classical books — a PDF sent to your email.
The number of the day, every morning
Every date has a number too. Once a year it will match the number of your name — 331. The channel posts one number a day, one verse and the Torah page it lands on. Nothing after it, no mailing list.
Hebrew is written from right to left. אכיש has 4 letters: א Alef, כ Kaf, י Yod, ש Shin. The first letter is Alef, the last is Shin.
For an engraving, a sign or a tattoo, show the spelling to someone who reads Hebrew: transliterating a name is a choice, not the only option.
The name אכיש does not stand as a word in the Pentateuch — as with most names, including many Tanakh names from the later books.
The verse of your name
There is a custom: at the end of the prayer one says a Torah verse that begins with the first letter of one's name and ends with its last. For אכיש these are א and ש. The Pentateuch has 5 such verses. The first of them is Genesis 46:15:
אלה בני לאה אשר ילדה ליעקב בפדן ארם ואת דינה בתו כל נפש בניו ובנותיו שלשים ושלש
This is from the portion Vayigash. What it is about: Judah pleads for Benjamin; Joseph reveals himself to his brothers; Jacob goes down to Egypt; the family settles in Goshen.
Each Hebrew letter has a number; a word's number is their sum (alef 1 … tav 400). The page is the remainder modulo 354: the Torah divided into 354 pages of 861 letters, as the lunar year has 354 days. Everything can be checked by hand.