564879911 has 4 divisors (see below), whose sum is σ = 565409400. Its totient is φ = 564350424.

The previous prime is 564879901. The next prime is 564880003. The reversal of 564879911 is 119978465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564879911 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564879911.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564879901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263141 + ... + 265278.

It is an arithmetic number, because the mean of its divisors is an integer number (141352350).

Almost surely, 2^564879911 is an apocalyptic number.

564879911 is a deficient number, since it is larger than the sum of its proper divisors (529489).

564879911 is a wasteful number, since it uses less digits than its factorization.

564879911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529488.

The product of its digits is 544320, while the sum is 50.

The square root of 564879911 is about 23767.2024226664. The cubic root of 564879911 is about 826.6443657449.

The spelling of 564879911 in words is "five hundred sixty-four million, eight hundred seventy-nine thousand, nine hundred eleven".