979314891 has 32 divisors (see below), whose sum is σ = 1426464000. Its totient is φ = 595260288.

The previous prime is 979314883. The next prime is 979314899. The reversal of 979314891 is 198413979.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (979314883) and next prime (979314899).

It is not a de Polignac number, because 979314891 - 2³ = 979314883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (979314899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 642256 + ... + 643778.

It is an arithmetic number, because the mean of its divisors is an integer number (44577000).

Almost surely, 2^979314891 is an apocalyptic number.

979314891 is a deficient number, since it is larger than the sum of its proper divisors (447149109).

979314891 is a wasteful number, since it uses less digits than its factorization.

979314891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1963.

The product of its digits is 489888, while the sum is 51.

The square root of 979314891 is about 31294.0072697633. The cubic root of 979314891 is about 993.0568681562.

The spelling of 979314891 in words is "nine hundred seventy-nine million, three hundred fourteen thousand, eight hundred ninety-one".