564620647 has 2 divisors, whose sum is σ = 564620648. Its totient is φ = 564620646.

The previous prime is 564620627. The next prime is 564620681. The reversal of 564620647 is 746026465.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 564620647 - 2¹¹ = 564618599 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (564620627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 282310323 + 282310324.

It is an arithmetic number, because the mean of its divisors is an integer number (282310324).

Almost surely, 2^564620647 is an apocalyptic number.

564620647 is a deficient number, since it is larger than the sum of its proper divisors (1).

564620647 is an equidigital number, since it uses as much as digits as its factorization.

564620647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 40.

The square root of 564620647 is about 23761.7475577871. The cubic root of 564620647 is about 826.5178775493.

The spelling of 564620647 in words is "five hundred sixty-four million, six hundred twenty thousand, six hundred forty-seven".