79679623 has 4 divisors (see below), whose sum is σ = 79712208. Its totient is φ = 79647040.

The previous prime is 79679609. The next prime is 79679647. The reversal of 79679623 is 32697697.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32697697 = 23 ⋅1421639.

It is a cyclic number.

It is not a de Polignac number, because 79679623 - 2⁵ = 79679591 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 (79679693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12298 + ... + 17623.

It is an arithmetic number, because the mean of its divisors is an integer number (19928052).

Almost surely, 2^79679623 is an apocalyptic number.

79679623 is a deficient number, since it is larger than the sum of its proper divisors (32585).

79679623 is a wasteful number, since it uses less digits than its factorization.

79679623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32584.

The product of its digits is 857304, while the sum is 49.

The square root of 79679623 is about 8926.3443245261. The cubic root of 79679623 is about 430.3109756974.

The spelling of 79679623 in words is "seventy-nine million, six hundred seventy-nine thousand, six hundred twenty-three".