979646979 has 4 divisors (see below), whose sum is σ = 1306195976. Its totient is φ = 653097984.

The previous prime is 979646977. The next prime is 979647001.

979646979 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 979646979 - 2¹ = 979646977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (979646971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163274494 + ... + 163274499.

It is an arithmetic number, because the mean of its divisors is an integer number (326548994).

Almost surely, 2^979646979 is an apocalyptic number.

979646979 is a deficient number, since it is larger than the sum of its proper divisors (326548997).

979646979 is a wasteful number, since it uses less digits than its factorization.

979646979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326548996.

The product of its digits is 46294416, while the sum is 66.

The square root of 979646979 is about 31299.3127560335. The cubic root of 979646979 is about 993.1691047830.

The spelling of 979646979 in words is "nine hundred seventy-nine million, six hundred forty-six thousand, nine hundred seventy-nine".