564407999 has 4 divisors (see below), whose sum is σ = 566506440. Its totient is φ = 562309560.

The previous prime is 564407941. The next prime is 564408001. The reversal of 564407999 is 999704465.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-564407999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 564407999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (564407699) 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, 1048817 + ... + 1049354.

It is an arithmetic number, because the mean of its divisors is an integer number (141626610).

Almost surely, 2^564407999 is an apocalyptic number.

564407999 is a deficient number, since it is larger than the sum of its proper divisors (2098441).

564407999 is a wasteful number, since it uses less digits than its factorization.

564407999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2098440.

The product of its (nonzero) digits is 2449440, while the sum is 53.

The square root of 564407999 is about 23757.2725496847. The cubic root of 564407999 is about 826.4141031870.

The spelling of 564407999 in words is "five hundred sixty-four million, four hundred seven thousand, nine hundred ninety-nine".