669

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 2 (2 unique) factors are:
3
223

Its 4 divisors are:
1
3
223
669
Its aliquote sum is:
227
makeing it a deficient number.

As Unicode codepoint (since version 1.1) this number represents this character:ʝ LATIN SMALL LETTER J WITH CROSSED-TAIL in IPA_Ext (Source: https://ucdapi.org/unicode/latest/codepoint/dec/669); HTML: ʝ

In the work of Johann Sebastian Bach BWV 669 is Kyrie, Gott Vater in Ewigkeit (à 2 Clav. et Ped., Canto fermo in Soprano)

The number appears at position 257 of the decimal digits of π surrounded by
3165271201909145648566923460348610454326648 Source: The Pi-Search Page

Computations done with Math::BigInt 1.999811 and Math::Pari 2.030523 based on PARI/GP 2.11.3 (elapsed: 967.11ms; cpu: 100.921000000003ms)