978565732 has 12 divisors (see below), whose sum is σ = 1734167680. Its totient is φ = 483089256.

The previous prime is 978565723. The next prime is 978565733. The reversal of 978565732 is 237565879.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 978565732.

It is not an unprimeable number, because it can be changed into a prime (978565733) 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, 1548048 + ... + 1548679.

Almost surely, 2^978565732 is an apocalyptic number.

It is an amenable number.

978565732 is a deficient number, since it is larger than the sum of its proper divisors (755601948).

978565732 is a wasteful number, since it uses less digits than its factorization.

978565732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3096810 (or 3096808 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 52.

The square root of 978565732 is about 31282.0352918412. The cubic root of 978565732 is about 992.8035797663.

The spelling of 978565732 in words is "nine hundred seventy-eight million, five hundred sixty-five thousand, seven hundred thirty-two".