566073921 has 24 divisors (see below), whose sum is σ = 899416224. Its totient is φ = 315577920.

The previous prime is 566073913. The next prime is 566073929. The reversal of 566073921 is 129370665.

It is an interprime number because it is at equal distance from previous prime (566073913) and next prime (566073929).

It is not a de Polignac number, because 566073921 - 2³ = 566073913 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 566073921.

It is not an unprimeable number, because it can be changed into a prime (566073929) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40935 + ... + 52988.

It is an arithmetic number, because the mean of its divisors is an integer number (37475676).

Almost surely, 2^566073921 is an apocalyptic number.

It is an amenable number.

566073921 is a deficient number, since it is larger than the sum of its proper divisors (333342303).

566073921 is a wasteful number, since it uses less digits than its factorization.

566073921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93981 (or 93974 counting only the distinct ones).

The product of its (nonzero) digits is 68040, while the sum is 39.

The square root of 566073921 is about 23792.3080217116. The cubic root of 566073921 is about 827.2263932988.

The spelling of 566073921 in words is "five hundred sixty-six million, seventy-three thousand, nine hundred twenty-one".