979222979 has 4 divisors (see below), whose sum is σ = 1119111984. Its totient is φ = 839333976.

The previous prime is 979222927. The next prime is 979222991.

979222979 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-979222979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (978222979) 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, 69944492 + ... + 69944505.

It is an arithmetic number, because the mean of its divisors is an integer number (279777996).

Almost surely, 2^979222979 is an apocalyptic number.

979222979 is a deficient number, since it is larger than the sum of its proper divisors (139889005).

979222979 is a wasteful number, since it uses less digits than its factorization.

979222979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139889004.

The product of its digits is 2571912, while the sum is 56.

The square root of 979222979 is about 31292.5387113286. The cubic root of 979222979 is about 993.0257999407.

The spelling of 979222979 in words is "nine hundred seventy-nine million, two hundred twenty-two thousand, nine hundred seventy-nine".