79434623 has 2 divisors, whose sum is σ = 79434624. Its totient is φ = 79434622.

The previous prime is 79434613. The next prime is 79434629. The reversal of 79434623 is 32643497.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 79434623 - 2¹⁸ = 79172479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79434629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39717311 + 39717312.

It is an arithmetic number, because the mean of its divisors is an integer number (39717312).

Almost surely, 2^79434623 is an apocalyptic number.

79434623 is a deficient number, since it is larger than the sum of its proper divisors (1).

79434623 is an equidigital number, since it uses as much as digits as its factorization.

79434623 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108864, while the sum is 38.

The square root of 79434623 is about 8912.6103359229. The cubic root of 79434623 is about 429.8694808487.

The spelling of 79434623 in words is "seventy-nine million, four hundred thirty-four thousand, six hundred twenty-three".