79830113 has 18 divisors (see below), whose sum is σ = 93382758. Its totient is φ = 67957120.

The previous prime is 79830103. The next prime is 79830119. The reversal of 79830113 is 31103897.

It can be written as a sum of positive squares in 3 ways, for example, as 68425984 + 11404129 = 8272^2 + 3377^2 .

It is not a de Polignac number, because 79830113 - 2⁸ = 79829857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 79830113.

It is not an unprimeable number, because it can be changed into a prime (79830119) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 405131 + ... + 405327.

It is an arithmetic number, because the mean of its divisors is an integer number (5187931).

Almost surely, 2^79830113 is an apocalyptic number.

It is an amenable number.

79830113 is a deficient number, since it is larger than the sum of its proper divisors (13552645).

79830113 is a wasteful number, since it uses less digits than its factorization.

79830113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 79830113 is about 8934.7698907135. The cubic root of 79830113 is about 430.5817131419.

The spelling of 79830113 in words is "seventy-nine million, eight hundred thirty thousand, one hundred thirteen".