979129992 has 32 divisors (see below), whose sum is σ = 2448626400. Its totient is φ = 326269824.

The previous prime is 979129981. The next prime is 979129997. The reversal of 979129992 is 299921979.

It is not an unprimeable number, because it can be changed into a prime (979129997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 109183 + ... + 117809.

It is an arithmetic number, because the mean of its divisors is an integer number (76519575).

Almost surely, 2^979129992 is an apocalyptic number.

It is an amenable number.

979129992 is an abundant number, since it is smaller than the sum of its proper divisors (1469496408).

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

979129992 is a wasteful number, since it uses less digits than its factorization.

979129992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13365 (or 13361 counting only the distinct ones).

The product of its digits is 1653372, while the sum is 57.

The square root of 979129992 is about 31291.0529065418. The cubic root of 979129992 is about 992.9943663738.

The spelling of 979129992 in words is "nine hundred seventy-nine million, one hundred twenty-nine thousand, nine hundred ninety-two".