84112513 has 4 divisors (see below), whose sum is σ = 84152320. Its totient is φ = 84072708.

The previous prime is 84112489. The next prime is 84112529. The reversal of 84112513 is 31521148.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84112513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84112543) 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, 16545 + ... + 21022.

It is an arithmetic number, because the mean of its divisors is an integer number (21038080).

Almost surely, 2^84112513 is an apocalyptic number.

It is an amenable number.

84112513 is a deficient number, since it is larger than the sum of its proper divisors (39807).

84112513 is a wasteful number, since it uses less digits than its factorization.

84112513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39806.

The product of its digits is 960, while the sum is 25.

The square root of 84112513 is about 9171.2874232574. The cubic root of 84112513 is about 438.1473635905.

The spelling of 84112513 in words is "eighty-four million, one hundred twelve thousand, five hundred thirteen".