808564 has 12 divisors (see below), whose sum is σ = 1489600. Its totient is φ = 382968.

The previous prime is 808559. The next prime is 808579. The reversal of 808564 is 465808.

808564 = T₁₈₇ + T₁₈₈ + ... + T₂₂₄.

808564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 5244 + ... + 5395.

2⁸⁰⁸⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

808564 is a deficient number, since it is larger than the sum of its proper divisors (681036).

808564 is a wasteful number, since it uses less digits than its factorization.

808564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662 (or 10660 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

The square root of 808564 is about 899.2018683255. The cubic root of 808564 is about 93.1618563481.

The spelling of 808564 in words is "eight hundred eight thousand, five hundred sixty-four".