79442967 has 4 divisors (see below), whose sum is σ = 105923960. Its totient is φ = 52961976.

The previous prime is 79442947. The next prime is 79442983. The reversal of 79442967 is 76924497.

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

It is not a de Polignac number, because 79442967 - 2²⁰ = 78394391 is a prime.

It is a super-2 number, since 2×79442967² = 12622370011526178, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79442947) 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, 13240492 + ... + 13240497.

It is an arithmetic number, because the mean of its divisors is an integer number (26480990).

Almost surely, 2^79442967 is an apocalyptic number.

79442967 is a deficient number, since it is larger than the sum of its proper divisors (26480993).

79442967 is a wasteful number, since it uses less digits than its factorization.

79442967 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26480992.

The product of its digits is 762048, while the sum is 48.

The square root of 79442967 is about 8913.0784244278. The cubic root of 79442967 is about 429.8845318228.

The spelling of 79442967 in words is "seventy-nine million, four hundred forty-two thousand, nine hundred sixty-seven".