564494923 has 8 divisors (see below), whose sum is σ = 567259200. Its totient is φ = 561738240.

The previous prime is 564494893. The next prime is 564494941. The reversal of 564494923 is 329494465.

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

It is a cyclic number.

It is not a de Polignac number, because 564494923 - 2²⁹ = 27624011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (564494963) 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, 192061 + ... + 194977.

It is an arithmetic number, because the mean of its divisors is an integer number (70907400).

Almost surely, 2^564494923 is an apocalyptic number.

564494923 is a deficient number, since it is larger than the sum of its proper divisors (2764277).

564494923 is a wasteful number, since it uses less digits than its factorization.

564494923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3797.

The product of its digits is 933120, while the sum is 46.

The square root of 564494923 is about 23759.1018980095. The cubic root of 564494923 is about 826.4565261223.

The spelling of 564494923 in words is "five hundred sixty-four million, four hundred ninety-four thousand, nine hundred twenty-three".