979911212 has 48 divisors (see below), whose sum is σ = 2117505600. Its totient is φ = 395248896.

The previous prime is 979911173. The next prime is 979911221. The reversal of 979911212 is 212119979.

It is a self number, because there is not a number n which added to its sum of digits gives 979911212.

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, 2318 + ... + 44330.

It is an arithmetic number, because the mean of its divisors is an integer number (44114700).

Almost surely, 2^979911212 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 979911212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1058752800).

979911212 is an abundant number, since it is smaller than the sum of its proper divisors (1137594388).

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

979911212 is a wasteful number, since it uses less digits than its factorization.

979911212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42055 (or 42039 counting only the distinct ones).

The product of its digits is 20412, while the sum is 41.

The square root of 979911212 is about 31303.5335385640. The cubic root of 979911212 is about 993.2583901640.

The spelling of 979911212 in words is "nine hundred seventy-nine million, nine hundred eleven thousand, two hundred twelve".