564645879 has 12 divisors (see below), whose sum is σ = 932113936. Its totient is φ = 322654752.

The previous prime is 564645847. The next prime is 564645899. The reversal of 564645879 is 978546465.

564645879 is a `hidden beast` number, since 56 + 4 + 6 + 4 + 587 + 9 = 666.

It is not a de Polignac number, because 564645879 - 2⁵ = 564645847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564645839) 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, 4481254 + ... + 4481379.

Almost surely, 2^564645879 is an apocalyptic number.

564645879 is a deficient number, since it is larger than the sum of its proper divisors (367468057).

564645879 is a wasteful number, since it uses less digits than its factorization.

564645879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8962646 (or 8962643 counting only the distinct ones).

The product of its digits is 7257600, while the sum is 54.

The square root of 564645879 is about 23762.2784892358. The cubic root of 564645879 is about 826.5301892897.

The spelling of 564645879 in words is "five hundred sixty-four million, six hundred forty-five thousand, eight hundred seventy-nine".