979728 has 20 divisors (see below), whose sum is σ = 2531088. Its totient is φ = 326560.

The previous prime is 979717. The next prime is 979747. The reversal of 979728 is 827979.

979728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 979728.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 979728.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10158 + ... + 10253.

2⁹⁷⁹⁷²⁸ is an apocalyptic number.

It is an amenable number.

979728 is an abundant number, since it is smaller than the sum of its proper divisors (1551360).

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

979728 is a wasteful number, since it uses less digits than its factorization.

979728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20422 (or 20416 counting only the distinct ones).

The product of its digits is 63504, while the sum is 42.

The square root of 979728 is about 989.8121033812. The cubic root of 979728 is about 99.3196483807.

The spelling of 979728 in words is "nine hundred seventy-nine thousand, seven hundred twenty-eight".