979865712 has 120 divisors (see below), whose sum is σ = 3142819680. Its totient is φ = 279175680.

The previous prime is 979865647. The next prime is 979865759. The reversal of 979865712 is 217568979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 423214 + ... + 425522.

It is an arithmetic number, because the mean of its divisors is an integer number (26190164).

Almost surely, 2^979865712 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 979865712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1571409840).

979865712 is an abundant number, since it is smaller than the sum of its proper divisors (2162953968).

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

979865712 is a wasteful number, since it uses less digits than its factorization.

979865712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751 (or 2742 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 54.

The square root of 979865712 is about 31302.8067751120. The cubic root of 979865712 is about 993.2430166772.

The spelling of 979865712 in words is "nine hundred seventy-nine million, eight hundred sixty-five thousand, seven hundred twelve".