79313899 has 12 divisors (see below), whose sum is σ = 92672424. Its totient is φ = 67681824.

The previous prime is 79313881. The next prime is 79313911. The reversal of 79313899 is 99831397.

It is not a de Polignac number, because 79313899 - 2²¹ = 77216747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79313849) 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 in 11 ways as a sum of consecutive naturals, for example, 7944 + ... + 14890.

It is an arithmetic number, because the mean of its divisors is an integer number (7722702).

Almost surely, 2^79313899 is an apocalyptic number.

79313899 is a deficient number, since it is larger than the sum of its proper divisors (13358525).

79313899 is a wasteful number, since it uses less digits than its factorization.

79313899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194 (or 7187 counting only the distinct ones).

The product of its digits is 367416, while the sum is 49.

The square root of 79313899 is about 8905.8351096346. The cubic root of 79313899 is about 429.6515998895.

The spelling of 79313899 in words is "seventy-nine million, three hundred thirteen thousand, eight hundred ninety-nine".