The name Tahan in Hebrew letters is תחן. 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.
תחן
In short
Your name in Hebrew letters is תחן. A Tanakh name: the name of two Israelites (first in Numbers 26:35; 2 mentions in the Tanakh). Adding up the numbers of its letters gives 458 — the same as the Torah word חתן, “to intermarry; father-in-law”. That number points to Torah page 104 of 354 — in the portion Vaera. What that portion is about: “And I appeared”: the promise of redemption in four expressions; the first seven plagues, from blood to hail. The verse that begins with the first letter of your name and ends with the last is Exodus 15:5. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Tahan” — this exact spelling is what was calculated: תחן. 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 תחן gives 458.
458
The number 458 is the Torah word חתן — «to intermarry; father-in-law» (Genesis 34:9).
And the magicians did so with their secret arts to bring forth gnats, but they could not; and there were gnats upon man, and upon beast.
This is from the portion Vaera. What it is about: “And I appeared”: the promise of redemption in four expressions; the first seven plagues, from blood to hail.
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) — 1108.
Reduced, each letter to one digit (mispar katan) — 17. A Torah word with the same number is טוב — “good” (Genesis 1:4).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 44. A Torah word with the same number is ילד — “to bear, give birth” (Genesis 3:16).
Cumulative: a letter plus all letters before it (mispar kidmi) — 1726.
Squares of the letter values (mispar perati) — 162564.
Building: the sum grows with each letter (mispar bone’eh) — 1266.
The letters that come out are אסט — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 70. A Torah word with the same number is כן — “so, thus” (Genesis 1:7).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 930.
The number 458 appears in the classical books 17 times across 5 works. The earliest mention is ספר קרניים (~1400).
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 — 458. 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. תחן has 3 letters: ת Tav, ח Chet, ן final Nun. The first letter is Tav, the last is final Nun.
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 תחן does not stand as a separate word in the Torah, but appears 1 time with prefixes — first in Numbers 26:35.
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 תחן these are ת and נ. The Pentateuch has exactly one such verse — Exodus 15:5:
תהמת יכסימו ירדו במצולת כמו אבן
This is from the portion Beshalach. What it is about: The parting of the sea and the song of Moses and Miriam; manna and quail; water from the rock; the war with Amalek.
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.