79340079 has 16 divisors (see below), whose sum is σ = 130199552. Its totient is φ = 41849568.

The previous prime is 79340059. The next prime is 79340137. The reversal of 79340079 is 97004397.

It is not a de Polignac number, because 79340079 - 2²¹ = 77242927 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79340039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145039 + ... + 145584.

It is an arithmetic number, because the mean of its divisors is an integer number (8137472).

Almost surely, 2^79340079 is an apocalyptic number.

79340079 is a deficient number, since it is larger than the sum of its proper divisors (50859473).

79340079 is a wasteful number, since it uses less digits than its factorization.

79340079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290646.

The product of its (nonzero) digits is 47628, while the sum is 39.

The square root of 79340079 is about 8907.3048112210. The cubic root of 79340079 is about 429.6988679456.

The spelling of 79340079 in words is "seventy-nine million, three hundred forty thousand, seventy-nine".