869825 has 12 divisors (see below), whose sum is σ = 1177008. Its totient is φ = 632400.

The previous prime is 869819. The next prime is 869849. The reversal of 869825 is 528968.

It is not a de Polignac number, because 869825 - 2⁴ = 869809 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869825.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1307 + ... + 1856.

It is an arithmetic number, because the mean of its divisors is an integer number (98084).

2⁸⁶⁹⁸²⁵ is an apocalyptic number.

It is an amenable number.

869825 is a deficient number, since it is larger than the sum of its proper divisors (307183).

869825 is a wasteful number, since it uses less digits than its factorization.

869825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3179 counting only the distinct ones).

The product of its digits is 34560, while the sum is 38.

The square root of 869825 is about 932.6440907442. The cubic root of 869825 is about 95.4576258196.

The spelling of 869825 in words is "eight hundred sixty-nine thousand, eight hundred twenty-five".