564123977 has 2 divisors, whose sum is σ = 564123978. Its totient is φ = 564123976.

The previous prime is 564123887. The next prime is 564124051. The reversal of 564123977 is 779321465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 439153936 + 124970041 = 20956^2 + 11179^2 .

It is a cyclic number.

It is not a de Polignac number, because 564123977 - 2¹⁰ = 564122953 is a prime.

It is a super-2 number, since 2×564123977² = 636471722852593058, which contains 22 as substring.

It is equal to p_29546927 and since 564123977 and 29546927 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (564129977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282061988 + 282061989.

It is an arithmetic number, because the mean of its divisors is an integer number (282061989).

Almost surely, 2^564123977 is an apocalyptic number.

It is an amenable number.

564123977 is a deficient number, since it is larger than the sum of its proper divisors (1).

564123977 is an equidigital number, since it uses as much as digits as its factorization.

564123977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 317520, while the sum is 44.

The square root of 564123977 is about 23751.2942173685. The cubic root of 564123977 is about 826.2754569300.

The spelling of 564123977 in words is "five hundred sixty-four million, one hundred twenty-three thousand, nine hundred seventy-seven".