564903973 has 2 divisors, whose sum is σ = 564903974. Its totient is φ = 564903972.

The previous prime is 564903967. The next prime is 564904013. The reversal of 564903973 is 379309465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 441294049 + 123609924 = 21007^2 + 11118^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564903973 is a prime.

It is a super-2 number, since 2×564903973² = 638232997422369458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564904973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282451986 + 282451987.

It is an arithmetic number, because the mean of its divisors is an integer number (282451987).

Almost surely, 2^564903973 is an apocalyptic number.

It is an amenable number.

564903973 is a deficient number, since it is larger than the sum of its proper divisors (1).

564903973 is an equidigital number, since it uses as much as digits as its factorization.

564903973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 612360, while the sum is 46.

The square root of 564903973 is about 23767.7086190487. The cubic root of 564903973 is about 826.6561030092.

The spelling of 564903973 in words is "five hundred sixty-four million, nine hundred three thousand, nine hundred seventy-three".