825904 has 20 divisors (see below), whose sum is σ = 1640520. Its totient is φ = 402560.

The previous prime is 825889. The next prime is 825919. The reversal of 825904 is 409528.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (825889) and next prime (825919).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27 + ... + 1285.

It is an arithmetic number, because the mean of its divisors is an integer number (82026).

2⁸²⁵⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

825904 is a deficient number, since it is larger than the sum of its proper divisors (814616).

825904 is a wasteful number, since it uses less digits than its factorization.

825904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 825904 is about 908.7926056037. The cubic root of 825904 is about 93.8231168863.

The spelling of 825904 in words is "eight hundred twenty-five thousand, nine hundred four".