979197984 has 240 divisors, whose sum is σ = 3091888800. Its totient is φ = 303077376.

The previous prime is 979197979. The next prime is 979198001. The reversal of 979197984 is 489791979.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 2905464 + ... + 2905800.

It is an arithmetic number, because the mean of its divisors is an integer number (12882870).

Almost surely, 2^979197984 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 979197984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1545944400).

979197984 is an abundant number, since it is smaller than the sum of its proper divisors (2112690816).

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

979197984 is a wasteful number, since it uses less digits than its factorization.

979197984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 420 counting only the distinct ones).

The product of its digits is 10287648, while the sum is 63.

The square root of 979197984 is about 31292.1393324266. The cubic root of 979197984 is about 993.0173507615.

The spelling of 979197984 in words is "nine hundred seventy-nine million, one hundred ninety-seven thousand, nine hundred eighty-four".