979345971 has 20 divisors (see below), whose sum is σ = 1463833800. Its totient is φ = 652513536.

The previous prime is 979345951. The next prime is 979345981. The reversal of 979345971 is 179543979.

It is a happy number.

It is not a de Polignac number, because 979345971 - 2²¹ = 977248819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (979345951) 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 19 ways as a sum of consecutive naturals, for example, 226195 + ... + 230483.

It is an arithmetic number, because the mean of its divisors is an integer number (73191690).

Almost surely, 2^979345971 is an apocalyptic number.

979345971 is a deficient number, since it is larger than the sum of its proper divisors (484487829).

979345971 is a wasteful number, since it uses less digits than its factorization.

979345971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7120 (or 7111 counting only the distinct ones).

The product of its digits is 2143260, while the sum is 54.

The square root of 979345971 is about 31294.5038465223. The cubic root of 979345971 is about 993.0673734191.

The spelling of 979345971 in words is "nine hundred seventy-nine million, three hundred forty-five thousand, nine hundred seventy-one".