979909218 has 32 divisors (see below), whose sum is σ = 2178883200. Its totient is φ = 326440368.

The previous prime is 979909207. The next prime is 979909243. The reversal of 979909218 is 812909979.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106443 + ... + 115281.

It is an arithmetic number, because the mean of its divisors is an integer number (68090100).

Almost surely, 2^979909218 is an apocalyptic number.

979909218 is an abundant number, since it is smaller than the sum of its proper divisors (1198973982).

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

979909218 is a wasteful number, since it uses less digits than its factorization.

979909218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10903 (or 10897 counting only the distinct ones).

The product of its (nonzero) digits is 734832, while the sum is 54.

The square root of 979909218 is about 31303.5016891082. The cubic root of 979909218 is about 993.2577164436.

The spelling of 979909218 in words is "nine hundred seventy-nine million, nine hundred nine thousand, two hundred eighteen".