564434993 has 2 divisors, whose sum is σ = 564434994. Its totient is φ = 564434992.

The previous prime is 564434989. The next prime is 564435007. The reversal of 564434993 is 399434465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 406103104 + 158331889 = 20152^2 + 12583^2 .

It is a cyclic number.

It is not a de Polignac number, because 564434993 - 2² = 564434989 is a prime.

It is a super-2 number, since 2×564434993² = 637173722645820098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (564434903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282217496 + 282217497.

It is an arithmetic number, because the mean of its divisors is an integer number (282217497).

Almost surely, 2^564434993 is an apocalyptic number.

It is an amenable number.

564434993 is a deficient number, since it is larger than the sum of its proper divisors (1).

564434993 is an equidigital number, since it uses as much as digits as its factorization.

564434993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 47.

The square root of 564434993 is about 23757.8406636630. The cubic root of 564434993 is about 826.4272779746.

The spelling of 564434993 in words is "five hundred sixty-four million, four hundred thirty-four thousand, nine hundred ninety-three".