869120 has 72 divisors (see below), whose sum is σ = 2403744. Its totient is φ = 294912.

The previous prime is 869119. The next prime is 869131. The reversal of 869120 is 21968.

It is a nialpdrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 869120.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8912 + ... + 9008.

2⁸⁶⁹¹²⁰ is an apocalyptic number.

869120 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 869120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1201872).

869120 is an abundant number, since it is smaller than the sum of its proper divisors (1534624).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

869120 is an equidigital number, since it uses as much as digits as its factorization.

869120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125 (or 111 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 26.

The square root of 869120 is about 932.2660564453. The cubic root of 869120 is about 95.4318291302.

It can be divided in two parts, 869 and 120, that added together give a palindrome (989).

The spelling of 869120 in words is "eight hundred sixty-nine thousand, one hundred twenty".