564959839 has 2 divisors, whose sum is σ = 564959840. Its totient is φ = 564959838.

The previous prime is 564959797. The next prime is 564959849. The reversal of 564959839 is 938959465.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 564959839 - 2⁷ = 564959711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564959849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282479919 + 282479920.

It is an arithmetic number, because the mean of its divisors is an integer number (282479920).

Almost surely, 2^564959839 is an apocalyptic number.

564959839 is a deficient number, since it is larger than the sum of its proper divisors (1).

564959839 is an equidigital number, since it uses as much as digits as its factorization.

564959839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10497600, while the sum is 58.

The square root of 564959839 is about 23768.8838400123. The cubic root of 564959839 is about 826.6833527423.

The spelling of 564959839 in words is "five hundred sixty-four million, nine hundred fifty-nine thousand, eight hundred thirty-nine".