979767979 has 4 divisors (see below), whose sum is σ = 993567600. Its totient is φ = 965968360.

The previous prime is 979767959. The next prime is 979768073.

It is a happy number.

979767979 is nontrivially palindromic in base 10.

979767979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 979767979 - 2⁵ = 979767947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979767949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6899704 + ... + 6899845.

It is an arithmetic number, because the mean of its divisors is an integer number (248391900).

Almost surely, 2^979767979 is an apocalyptic number.

979767979 is a deficient number, since it is larger than the sum of its proper divisors (13799621).

979767979 is a wasteful number, since it uses less digits than its factorization.

979767979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13799620.

The product of its digits is 94517766, while the sum is 70.

The square root of 979767979 is about 31301.2456461400. The cubic root of 979767979 is about 993.2099931563.

The spelling of 979767979 in words is "nine hundred seventy-nine million, seven hundred sixty-seven thousand, nine hundred seventy-nine".