564664 has 8 divisors (see below), whose sum is σ = 1058760. Its totient is φ = 282328.

The previous prime is 564653. The next prime is 564667. The reversal of 564664 is 466465.

564664 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35284 + ... + 35299.

It is an arithmetic number, because the mean of its divisors is an integer number (132345).

2⁵⁶⁴⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

564664 is a deficient number, since it is larger than the sum of its proper divisors (494096).

564664 is a wasteful number, since it uses less digits than its factorization.

564664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70589 (or 70585 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

The square root of 564664 is about 751.4412818045. The cubic root of 564664 is about 82.6539031052.

The spelling of 564664 in words is "five hundred sixty-four thousand, six hundred sixty-four".