79913845 has 24 divisors (see below), whose sum is σ = 110009088. Its totient is φ = 55582560.

The previous prime is 79913839. The next prime is 79913849. The reversal of 79913845 is 54831997.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-79913845 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 79913795 and 79913804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79913849) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11044 + ... + 16786.

It is an arithmetic number, because the mean of its divisors is an integer number (4583712).

Almost surely, 2^79913845 is an apocalyptic number.

It is an amenable number.

79913845 is a deficient number, since it is larger than the sum of its proper divisors (30095243).

79913845 is a wasteful number, since it uses less digits than its factorization.

79913845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5793 (or 5782 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 79913845 is about 8939.4544016959. The cubic root of 79913845 is about 430.7322030125.

The spelling of 79913845 in words is "seventy-nine million, nine hundred thirteen thousand, eight hundred forty-five".