869256 has 24 divisors (see below), whose sum is σ = 2354430. Its totient is φ = 289728.

The previous prime is 869251. The next prime is 869257. The reversal of 869256 is 652968.

It can be written as a sum of positive squares in only one way, i.e., 864900 + 4356 = 930^2 + 66^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 869256.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869256.

It is not an unprimeable number, because it can be changed into a prime (869251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5965 + ... + 6108.

2⁸⁶⁹²⁵⁶ is an apocalyptic number.

It is an amenable number.

869256 is an abundant number, since it is smaller than the sum of its proper divisors (1485174).

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

869256 is a wasteful number, since it uses less digits than its factorization.

869256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12085 (or 12078 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 869256 is about 932.3389941432. The cubic root of 869256 is about 95.4368065986.

The spelling of 869256 in words is "eight hundred sixty-nine thousand, two hundred fifty-six".