979987122 has 24 divisors (see below), whose sum is σ = 2128922640. Its totient is φ = 325798200.

The previous prime is 979987093. The next prime is 979987153. The reversal of 979987122 is 221789979.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65004 + ... + 78647.

It is an arithmetic number, because the mean of its divisors is an integer number (88705110).

Almost surely, 2^979987122 is an apocalyptic number.

979987122 is an abundant number, since it is smaller than the sum of its proper divisors (1148935518).

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

979987122 is a wasteful number, since it uses less digits than its factorization.

979987122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144038 (or 144035 counting only the distinct ones).

The product of its digits is 1143072, while the sum is 54.

The square root of 979987122 is about 31304.7459980112. The cubic root of 979987122 is about 993.2840374868.

The spelling of 979987122 in words is "nine hundred seventy-nine million, nine hundred eighty-seven thousand, one hundred twenty-two".