561928808 has 32 divisors (see below), whose sum is σ = 1211540160. Its totient is φ = 239345280.

The previous prime is 561928733. The next prime is 561928811. The reversal of 561928808 is 808829165.

561928808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21653 + ... + 39908.

It is an arithmetic number, because the mean of its divisors is an integer number (37860630).

Almost surely, 2^561928808 is an apocalyptic number.

It is an amenable number.

561928808 is an abundant number, since it is smaller than the sum of its proper divisors (649611352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561928808 is a wasteful number, since it uses less digits than its factorization.

561928808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61737 (or 61733 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 47.

The square root of 561928808 is about 23705.0376080697. The cubic root of 561928808 is about 825.2023050855.

The spelling of 561928808 in words is "five hundred sixty-one million, nine hundred twenty-eight thousand, eight hundred eight".