979531280 has 160 divisors (see below), whose sum is σ = 2821319424. Its totient is φ = 307980288.

The previous prime is 979531261. The next prime is 979531297. The reversal of 979531280 is 82135979.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1433819 + ... + 1434501.

Almost surely, 2^979531280 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 979531280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1410659712).

979531280 is an abundant number, since it is smaller than the sum of its proper divisors (1841788144).

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

979531280 is a wasteful number, since it uses less digits than its factorization.

979531280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 913 (or 907 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 979531280 is about 31297.4644340400. The cubic root of 979531280 is about 993.1300045769.

The spelling of 979531280 in words is "nine hundred seventy-nine million, five hundred thirty-one thousand, two hundred eighty".