564323647 has 4 divisors (see below), whose sum is σ = 572746456. Its totient is φ = 555900840.

The previous prime is 564323633. The next prime is 564323681. The reversal of 564323647 is 746323465.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 564323647 - 2¹⁵ = 564290879 is a prime.

It is a super-2 number, since 2×564323647² = 636922357126761218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564303647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4211304 + ... + 4211437.

It is an arithmetic number, because the mean of its divisors is an integer number (143186614).

Almost surely, 2^564323647 is an apocalyptic number.

564323647 is a deficient number, since it is larger than the sum of its proper divisors (8422809).

564323647 is an equidigital number, since it uses as much as digits as its factorization.

564323647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422808.

The product of its digits is 362880, while the sum is 40.

The square root of 564323647 is about 23755.4971953862. The cubic root of 564323647 is about 826.3729313422.

The spelling of 564323647 in words is "five hundred sixty-four million, three hundred twenty-three thousand, six hundred forty-seven".