79388093 has 2 divisors, whose sum is σ = 79388094. Its totient is φ = 79388092.

The previous prime is 79388047. The next prime is 79388129. The reversal of 79388093 is 39088397.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54567769 + 24820324 = 7387^2 + 4982^2 .

It is a cyclic number.

It is not a de Polignac number, because 79388093 - 2⁸ = 79387837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79388693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39694046 + 39694047.

It is an arithmetic number, because the mean of its divisors is an integer number (39694047).

Almost surely, 2^79388093 is an apocalyptic number.

It is an amenable number.

79388093 is a deficient number, since it is larger than the sum of its proper divisors (1).

79388093 is an equidigital number, since it uses as much as digits as its factorization.

79388093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 79388093 is about 8909.9996071829. Note that the first 3 decimals coincide. The cubic root of 79388093 is about 429.7855303289.

The spelling of 79388093 in words is "seventy-nine million, three hundred eighty-eight thousand, ninety-three".