564464477 has 2 divisors, whose sum is σ = 564464478. Its totient is φ = 564464476.

The previous prime is 564464443. The next prime is 564464479. The reversal of 564464477 is 774464465.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 380211001 + 184253476 = 19499^2 + 13574^2 .

It is a cyclic number.

It is not a de Polignac number, because 564464477 - 2⁸ = 564464221 is a prime.

Together with 564464479, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564464479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282232238 + 282232239.

It is an arithmetic number, because the mean of its divisors is an integer number (282232239).

Almost surely, 2^564464477 is an apocalyptic number.

It is an amenable number.

564464477 is a deficient number, since it is larger than the sum of its proper divisors (1).

564464477 is an equidigital number, since it uses as much as digits as its factorization.

564464477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2257920, while the sum is 47.

The square root of 564464477 is about 23758.4611664981. The cubic root of 564464477 is about 826.4416675606.

The spelling of 564464477 in words is "five hundred sixty-four million, four hundred sixty-four thousand, four hundred seventy-seven".