79707679 has 8 divisors (see below), whose sum is σ = 88838640. Its totient is φ = 71070336.

The previous prime is 79707637. The next prime is 79707697. The reversal of 79707679 is 97670797.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 79707679 - 2²³ = 71319071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79707179) 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 7 ways as a sum of consecutive naturals, for example, 123064 + ... + 123709.

It is an arithmetic number, because the mean of its divisors is an integer number (11104830).

Almost surely, 2^79707679 is an apocalyptic number.

79707679 is a deficient number, since it is larger than the sum of its proper divisors (9130961).

79707679 is a wasteful number, since it uses less digits than its factorization.

79707679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246809.

The product of its (nonzero) digits is 1166886, while the sum is 52.

The square root of 79707679 is about 8927.9157142079. The cubic root of 79707679 is about 430.3614753842.

The spelling of 79707679 in words is "seventy-nine million, seven hundred seven thousand, six hundred seventy-nine".