79372123 has 2 divisors, whose sum is σ = 79372124. Its totient is φ = 79372122.

The previous prime is 79372091. The next prime is 79372129. The reversal of 79372123 is 32127397.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79372123 - 2⁵ = 79372091 is a prime.

It is equal to p_4634872 and since 79372123 and 4634872 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (79372129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39686061 + 39686062.

It is an arithmetic number, because the mean of its divisors is an integer number (39686062).

Almost surely, 2^79372123 is an apocalyptic number.

79372123 is a deficient number, since it is larger than the sum of its proper divisors (1).

79372123 is an equidigital number, since it uses as much as digits as its factorization.

79372123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15876, while the sum is 34.

The square root of 79372123 is about 8909.1033780061. The cubic root of 79372123 is about 429.7567093183.

The spelling of 79372123 in words is "seventy-nine million, three hundred seventy-two thousand, one hundred twenty-three".