79123 has 4 divisors (see below), whose sum is σ = 86328. Its totient is φ = 71920.

The previous prime is 79111. The next prime is 79133. The reversal of 79123 is 32197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32197 = 11 ⋅2927.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79123 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 79094 and 79103.

It is not an unprimeable number, because it can be changed into a prime (79103) 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, 3586 + ... + 3607.

It is an arithmetic number, because the mean of its divisors is an integer number (21582).

2⁷⁹¹²³ is an apocalyptic number.

79123 is a deficient number, since it is larger than the sum of its proper divisors (7205).

79123 is a wasteful number, since it uses less digits than its factorization.

79123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7204.

The product of its digits is 378, while the sum is 22.

The square root of 79123 is about 281.2881085293. The cubic root of 79123 is about 42.9306616416.

It can be divided in two parts, 79 and 123, that added together give a palindrome (202).

The spelling of 79123 in words is "seventy-nine thousand, one hundred twenty-three".