79439107 has 4 divisors (see below), whose sum is σ = 86660856. Its totient is φ = 72217360.

The previous prime is 79439093. The next prime is 79439119. The reversal of 79439107 is 70193497.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70193497 = 11 ⋅6381227.

It is a cyclic number.

It is not a de Polignac number, because 79439107 - 2⁷ = 79438979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79439107.

It is not an unprimeable number, because it can be changed into a prime (79439167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3610858 + ... + 3610879.

It is an arithmetic number, because the mean of its divisors is an integer number (21665214).

Almost surely, 2^79439107 is an apocalyptic number.

79439107 is a deficient number, since it is larger than the sum of its proper divisors (7221749).

79439107 is a wasteful number, since it uses less digits than its factorization.

79439107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7221748.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 79439107 is about 8912.8618860611. The cubic root of 79439107 is about 429.8775692548.

The spelling of 79439107 in words is "seventy-nine million, four hundred thirty-nine thousand, one hundred seven".