564660 has 36 divisors (see below), whose sum is σ = 1713348. Its totient is φ = 150528.

The previous prime is 564653. The next prime is 564667. The reversal of 564660 is 66465.

564660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (564653) and next prime (564667).

It can be written as a sum of positive squares in 2 ways, for example, as 443556 + 121104 = 666^2 + 348^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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 in 11 ways as a sum of consecutive naturals, for example, 1389 + ... + 1748.

It is an arithmetic number, because the mean of its divisors is an integer number (47593).

2⁵⁶⁴⁶⁶⁰ is an apocalyptic number.

It is an amenable number.

564660 is an abundant number, since it is smaller than the sum of its proper divisors (1148688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

564660 is a wasteful number, since it uses less digits than its factorization.

564660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152 (or 3147 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 564660 is about 751.4386202479. The cubic root of 564660 is about 82.6537079352.

The spelling of 564660 in words is "five hundred sixty-four thousand, six hundred sixty".