79679 has 8 divisors (see below), whose sum is σ = 87120. Its totient is φ = 72576.

The previous prime is 79669. The next prime is 79687. The reversal of 79679 is 97697.

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

It is a cyclic number.

It is not a de Polignac number, because 79679 - 2⁸ = 79423 is a prime.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 677 + ... + 785.

It is an arithmetic number, because the mean of its divisors is an integer number (10890).

2⁷⁹⁶⁷⁹ is an apocalyptic number.

79679 is a deficient number, since it is larger than the sum of its proper divisors (7441).

79679 is a wasteful number, since it uses less digits than its factorization.

79679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169.

The product of its digits is 23814, while the sum is 38.

The square root of 79679 is about 282.2746889114. The cubic root of 79679 is about 43.0309854188.

The spelling of 79679 in words is "seventy-nine thousand, six hundred seventy-nine".