83712113 has 4 divisors (see below), whose sum is σ = 84771840. Its totient is φ = 82652388.

The previous prime is 83712107. The next prime is 83712137. The reversal of 83712113 is 31121738.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31121738 = 2 ⋅15560869.

It is a cyclic number.

It is not a de Polignac number, because 83712113 - 2⁶ = 83712049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83712103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529745 + ... + 529902.

It is an arithmetic number, because the mean of its divisors is an integer number (21192960).

Almost surely, 2^83712113 is an apocalyptic number.

It is an amenable number.

83712113 is a deficient number, since it is larger than the sum of its proper divisors (1059727).

83712113 is a wasteful number, since it uses less digits than its factorization.

83712113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059726.

The product of its digits is 1008, while the sum is 26.

The square root of 83712113 is about 9149.4323867659. The cubic root of 83712113 is about 437.4510212380.

The spelling of 83712113 in words is "eighty-three million, seven hundred twelve thousand, one hundred thirteen".