564420667 has 8 divisors (see below), whose sum is σ = 596058624. Its totient is φ = 533374248.

The previous prime is 564420653. The next prime is 564420671. The reversal of 564420667 is 766024465.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564420667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564420167) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145923 + ... + 149740.

It is an arithmetic number, because the mean of its divisors is an integer number (74507328).

Almost surely, 2^564420667 is an apocalyptic number.

564420667 is a deficient number, since it is larger than the sum of its proper divisors (31637957).

564420667 is a wasteful number, since it uses less digits than its factorization.

564420667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295769.

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

The square root of 564420667 is about 23757.5391612852. The cubic root of 564420667 is about 826.4202860284.

The spelling of 564420667 in words is "five hundred sixty-four million, four hundred twenty thousand, six hundred sixty-seven".