869925 has 24 divisors (see below), whose sum is σ = 1644736. Its totient is φ = 397440.

The previous prime is 869909. The next prime is 869927. The reversal of 869925 is 529968.

It is a happy number.

It is not a de Polignac number, because 869925 - 2⁴ = 869909 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 869925.

It is not an unprimeable number, because it can be changed into a prime (869927) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 304 + ... + 1353.

2⁸⁶⁹⁹²⁵ is an apocalyptic number.

It is an amenable number.

869925 is a deficient number, since it is larger than the sum of its proper divisors (774811).

869925 is a wasteful number, since it uses less digits than its factorization.

869925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677 (or 1672 counting only the distinct ones).

The product of its digits is 38880, while the sum is 39.

The square root of 869925 is about 932.6977002223. The cubic root of 869925 is about 95.4612837956.

It can be divided in two parts, 86 and 9925, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 869925 in words is "eight hundred sixty-nine thousand, nine hundred twenty-five".