7777

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 3 (3 unique) factors are:
7
11
101

Its 8 divisors are:
1
7
11
77
101
707
1111
7777
Its aliquote sum is:
2015
makeing it a deficient number.

As Unicode codepoint (since version 1.1) this number represents this character:ṡ LATIN SMALL LETTER S WITH DOT ABOVE in Latin_Ext_Additional (Source: https://ucdapi.org/unicode/latest/codepoint/dec/7777); HTML: ṡ

The number appears at position 1589 of the decimal digits of π surrounded by
25518184175746728909777727938000816470600161 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: 791.098ms; cpu: 72.5070000000017ms)