564381977 has 2 divisors, whose sum is σ = 564381978. Its totient is φ = 564381976.

The previous prime is 564381971. The next prime is 564382033. The reversal of 564381977 is 779183465.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 499030921 + 65351056 = 22339^2 + 8084^2 .

It is a cyclic number.

It is not a de Polignac number, because 564381977 - 2⁶ = 564381913 is a prime.

It is not a weakly prime, because it can be changed into another prime (564381971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282190988 + 282190989.

It is an arithmetic number, because the mean of its divisors is an integer number (282190989).

Almost surely, 2^564381977 is an apocalyptic number.

It is an amenable number.

564381977 is a deficient number, since it is larger than the sum of its proper divisors (1).

564381977 is an equidigital number, since it uses as much as digits as its factorization.

564381977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 50.

The square root of 564381977 is about 23756.7248794946. The cubic root of 564381977 is about 826.4014023994.

The spelling of 564381977 in words is "five hundred sixty-four million, three hundred eighty-one thousand, nine hundred seventy-seven".