564700247 has 4 divisors (see below), whose sum is σ = 582916416. Its totient is φ = 546484080.

The previous prime is 564700231. The next prime is 564700277. The reversal of 564700247 is 742007465.

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 564700247 - 2⁴ = 564700231 is a prime.

It is a super-2 number, since 2×564700247² = 637772737923722018, 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 (564700217) 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 in 3 ways as a sum of consecutive naturals, for example, 9108038 + ... + 9108099.

It is an arithmetic number, because the mean of its divisors is an integer number (145729104).

Almost surely, 2^564700247 is an apocalyptic number.

564700247 is a deficient number, since it is larger than the sum of its proper divisors (18216169).

564700247 is a wasteful number, since it uses less digits than its factorization.

564700247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18216168.

The product of its (nonzero) digits is 47040, while the sum is 35.

The square root of 564700247 is about 23763.4224597384. The cubic root of 564700247 is about 826.5567164476.

The spelling of 564700247 in words is "five hundred sixty-four million, seven hundred thousand, two hundred forty-seven".