79393399 has 2 divisors, whose sum is σ = 79393400. Its totient is φ = 79393398.

The previous prime is 79393397. The next prime is 79393471. The reversal of 79393399 is 99339397.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 79393399 - 2¹ = 79393397 is a prime.

Together with 79393397, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79393397) by changing a digit.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39696699 + 39696700.

It is an arithmetic number, because the mean of its divisors is an integer number (39696700).

Almost surely, 2^79393399 is an apocalyptic number.

79393399 is a deficient number, since it is larger than the sum of its proper divisors (1).

79393399 is an equidigital number, since it uses as much as digits as its factorization.

79393399 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1240029, while the sum is 52.

The square root of 79393399 is about 8910.2973575521. The cubic root of 79393399 is about 429.7951051956.

The spelling of 79393399 in words is "seventy-nine million, three hundred ninety-three thousand, three hundred ninety-nine".