79388867 has 2 divisors, whose sum is σ = 79388868. Its totient is φ = 79388866.

The previous prime is 79388851. The next prime is 79388873. The reversal of 79388867 is 76888397.

It is a strong prime.

It is an emirp because it is prime and its reverse (76888397) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79388867 - 2⁴ = 79388851 is a prime.

It is not a weakly prime, because it can be changed into another prime (79388767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39694433 + 39694434.

It is an arithmetic number, because the mean of its divisors is an integer number (39694434).

Almost surely, 2^79388867 is an apocalyptic number.

79388867 is a deficient number, since it is larger than the sum of its proper divisors (1).

79388867 is an equidigital number, since it uses as much as digits as its factorization.

79388867 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4064256, while the sum is 56.

The square root of 79388867 is about 8910.0430414224. The cubic root of 79388867 is about 429.7869270661.

The spelling of 79388867 in words is "seventy-nine million, three hundred eighty-eight thousand, eight hundred sixty-seven".