686

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 4 (2 unique) factors are:
2
7³ = 343

Its 8 divisors are:
1
2
7
14
49
98
343
686
Its aliquote sum is:
514
makeing it a deficient number.

As Unicode codepoint (since version 4.0) this number represents this character:ʮ LATIN SMALL LETTER TURNED H WITH FISHHOOK in IPA Extensions (Source: https://unicode-api.aaronluna.dev/v1/codepoints/2ae?show_props=Basic); HTML: ʮ

The number appears at position 1131 of the decimal digits of π surrounded by
4541506959508295331168617278558890750983817 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: 1470.459ms; cpu: 85.8629999999998ms)