979411891 has 8 divisors (see below), whose sum is σ = 984531440. Its totient is φ = 974304288.

The previous prime is 979411883. The next prime is 979411907. The reversal of 979411891 is 198114979.

979411891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 979411891 - 2³ = 979411883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979411831) 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, 193900 + ... + 198886.

It is an arithmetic number, because the mean of its divisors is an integer number (123066430).

Almost surely, 2^979411891 is an apocalyptic number.

979411891 is a deficient number, since it is larger than the sum of its proper divisors (5119549).

979411891 is a wasteful number, since it uses less digits than its factorization.

979411891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5973.

The product of its digits is 163296, while the sum is 49.

The square root of 979411891 is about 31295.5570488848. The cubic root of 979411891 is about 993.0896541161.

The spelling of 979411891 in words is "nine hundred seventy-nine million, four hundred eleven thousand, eight hundred ninety-one".