The name Tattenai in Hebrew letters is תתני. 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.
תתני
In short
Your name in Hebrew letters is תתני. A Tanakh name: a Persian (first in Ezra 5:3; 4 mentions in the Tanakh). Adding up the numbers of its letters gives 860 — the same as the Torah word נתתי, “I have given”. That number points to Torah page 152 of 354 — in the portion Ki Tisa. What that portion is about: The half-shekel for the census; the golden calf and the broken tablets; the thirteen attributes of mercy; the second tablets. The verse that begins with the first letter of your name and ends with the last is 2 Samuel 22:37. Each of these steps is laid out below with its sources. Every figure can be checked by hand.
You wrote “Tattenai” — this exact spelling is what was calculated: תתני. 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 תתני gives 860.
860
The number 860 is the Torah word נתתי — «I have given» (Genesis 1:29).
The feast of unleavened bread shalt thou keep. Seven days thou shalt eat unleavened bread, as I commanded thee, at the time appointed in the month Abib, for in the month Abib thou camest out from Egypt.
This is from the portion Ki Tisa. What it is about: The half-shekel for the census; the golden calf and the broken tablets; the thirteen attributes of mercy; the second tablets.
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) — 860. A Torah word with the same number is נתתי — “I have given” (Genesis 1:29).
Reduced, each letter to one digit (mispar katan) — 14. A Torah word with the same number is יד — “hand” (Genesis 3:22).
Ordinal: alef 1, bet 2 … tav 22 (mispar siduri) — 68. A Torah word with the same number is חלל — “to begin” (Genesis 4:26).
Cumulative: a letter plus all letters before it (mispar kidmi) — 3240.
Squares of the letter values (mispar perati) — 322600.
Building: the sum grows with each letter (mispar bone’eh) — 2910.
The letters that come out are אאטמ — not a word that stands in the Pentateuch. Atbash: letters mirrored, alef for tav, bet for shin, and the number of the resulting word — 51. A Torah word with the same number is אכל — “to eat” (Genesis 2:16).
Filling: the names of the letters are counted — alef, bet, gimel… (milui) — 938.
The number 860 appears in the classical books 2 times across 2 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 — 860. 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. תתני has 4 letters: ת Tav, ת Tav, נ Nun, י Yod. The first letter is Tav, the last is Yod.
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 תתני 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
The Pentateuch has no verse that begins with ת and ends with י. The custom allows the whole Tanakh — the Prophets and the Writings have 26 such verses. The first of them is 2 Samuel 22:37:
The name תתני has no such day. The numbers of the dates in a year cover 326 values out of 940, and 860 is not among them. Half of all names are like this — neither good nor bad, just a fact of counting.
Add a date of birth and the verse of meeting from that week's portion is added to the reading.
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.