861

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:
3
7
41

Its 8 divisors are:
1
3
7
21
41
123
287
861
Its aliquote sum is:
483
makeing it a deficient number.

As Unicode codepoint (since version 4.0) this number represents this character:͝ COMBINING DOUBLE BREVE in Diacriticals (Source: https://www.unicode.org/Public/UCD/latest/ucdxml/ucd.all.grouped.zip); HTML: ͝

In the work of Johann Sebastian Bach BWV 861 is Praeludium und Fuge g-Moll (Das Wohltemperierte Klavier, Teil 1)

The number appears at position 267 of the decimal digits of π surrounded by
9091456485669234603486104543266482133936072 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: 915.318ms; cpu: 80.3979999999989ms)