79844913 has 16 divisors (see below), whose sum is σ = 120230400. Its totient is φ = 52356240.

The previous prime is 79844911. The next prime is 79844923. The reversal of 79844913 is 31944897.

It is not a de Polignac number, because 79844913 - 2¹ = 79844911 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79844911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22593 + ... + 25886.

It is an arithmetic number, because the mean of its divisors is an integer number (7514400).

Almost surely, 2^79844913 is an apocalyptic number.

It is an amenable number.

79844913 is a deficient number, since it is larger than the sum of its proper divisors (40385487).

79844913 is a wasteful number, since it uses less digits than its factorization.

79844913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48549 (or 48543 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 79844913 is about 8935.5980773533. The cubic root of 79844913 is about 430.6083205433.

The spelling of 79844913 in words is "seventy-nine million, eight hundred forty-four thousand, nine hundred thirteen".