564620405 has 8 divisors (see below), whose sum is σ = 717400152. Its totient is φ = 425125888.

The previous prime is 564620393. The next prime is 564620411. The reversal of 564620405 is 504026465.

It can be written as a sum of positive squares in 4 ways, for example, as 92948881 + 471671524 = 9641^2 + 21718^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 564620405 - 2¹² = 564616309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3321212 + ... + 3321381.

It is an arithmetic number, because the mean of its divisors is an integer number (89675019).

Almost surely, 2^564620405 is an apocalyptic number.

It is an amenable number.

564620405 is a deficient number, since it is larger than the sum of its proper divisors (152779747).

564620405 is a wasteful number, since it uses less digits than its factorization.

564620405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6642615.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 564620405 is about 23761.7424655685. The cubic root of 564620405 is about 826.5177594657.

The spelling of 564620405 in words is "five hundred sixty-four million, six hundred twenty thousand, four hundred five".