79930971 has 6 divisors (see below), whose sum is σ = 115455860. Its totient is φ = 53287308.

The previous prime is 79930897. The next prime is 79930997. The reversal of 79930971 is 17903997.

It is not a de Polignac number, because 79930971 - 2¹⁴ = 79914587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79930871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4440601 + ... + 4440618.

Almost surely, 2^79930971 is an apocalyptic number.

79930971 is a deficient number, since it is larger than the sum of its proper divisors (35524889).

79930971 is a wasteful number, since it uses less digits than its factorization.

79930971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8881225 (or 8881222 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 79930971 is about 8940.4122388176. The cubic root of 79930971 is about 430.7629702837.

The spelling of 79930971 in words is "seventy-nine million, nine hundred thirty thousand, nine hundred seventy-one".