84747013 has 16 divisors (see below), whose sum is σ = 93139200. Its totient is φ = 76639680.

The previous prime is 84747007. The next prime is 84747017. The reversal of 84747013 is 31074748.

It is a de Polignac number, because none of the positive numbers 2^k-84747013 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 84747013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84747017) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 183603 + ... + 184063.

It is an arithmetic number, because the mean of its divisors is an integer number (5821200).

Almost surely, 2^84747013 is an apocalyptic number.

It is an amenable number.

84747013 is a deficient number, since it is larger than the sum of its proper divisors (8392187).

84747013 is a wasteful number, since it uses less digits than its factorization.

84747013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732.

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 84747013 is about 9205.8140867606. The cubic root of 84747013 is about 439.2463216721.

The spelling of 84747013 in words is "eighty-four million, seven hundred forty-seven thousand, thirteen".