564761867 has 4 divisors (see below), whose sum is σ = 564857040. Its totient is φ = 564666696.

The previous prime is 564761831. The next prime is 564761881. The reversal of 564761867 is 768167465.

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 564761867 - 2⁸ = 564761611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564761807) 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, 38048 + ... + 50765.

It is an arithmetic number, because the mean of its divisors is an integer number (141214260).

Almost surely, 2^564761867 is an apocalyptic number.

564761867 is a deficient number, since it is larger than the sum of its proper divisors (95173).

564761867 is an equidigital number, since it uses as much as digits as its factorization.

564761867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95172.

The product of its digits is 1693440, while the sum is 50.

The square root of 564761867 is about 23764.7189547867. The cubic root of 564761867 is about 826.5867799327.

The spelling of 564761867 in words is "five hundred sixty-four million, seven hundred sixty-one thousand, eight hundred sixty-seven".