79140023 has 2 divisors, whose sum is σ = 79140024. Its totient is φ = 79140022.

The previous prime is 79140013. The next prime is 79140059. The reversal of 79140023 is 32004197.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79140023 - 2⁴ = 79140007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 79139974 and 79140001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79140013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39570011 + 39570012.

It is an arithmetic number, because the mean of its divisors is an integer number (39570012).

Almost surely, 2^79140023 is an apocalyptic number.

79140023 is a deficient number, since it is larger than the sum of its proper divisors (1).

79140023 is an equidigital number, since it uses as much as digits as its factorization.

79140023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 79140023 is about 8896.0678392198. The cubic root of 79140023 is about 429.3374020812.

The spelling of 79140023 in words is "seventy-nine million, one hundred forty thousand, twenty-three".