285604 has 12 divisors (see below), whose sum is σ = 545328. Its totient is φ = 129800.

The previous prime is 285599. The next prime is 285611. The reversal of 285604 is 406582.

It is a zygodrome in base 7.

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, 3202 + ... + 3289.

It is an arithmetic number, because the mean of its divisors is an integer number (45444).

2²⁸⁵⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

285604 is a deficient number, since it is larger than the sum of its proper divisors (259724).

285604 is a wasteful number, since it uses less digits than its factorization.

285604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6506 (or 6504 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 285604 is about 534.4193110283. The cubic root of 285604 is about 65.8549000892.

The spelling of 285604 in words is "two hundred eighty-five thousand, six hundred four".