8720042704 has 40 divisors (see below), whose sum is σ = 17793548640. Its totient is φ = 4128398208.

The previous prime is 8720042689. The next prime is 8720042711. The reversal of 8720042704 is 4072400278.

It is a self number, because there is not a number n which added to its sum of digits gives 8720042704.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 682842 + ... + 695494.

It is an arithmetic number, because the mean of its divisors is an integer number (444838716).

Almost surely, 2^8720042704 is an apocalyptic number.

It is an amenable number.

8720042704 is an abundant number, since it is smaller than the sum of its proper divisors (9073505936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8720042704 is a wasteful number, since it uses less digits than its factorization.

8720042704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14947 (or 14941 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 8720042704 is about 93381.1688939478. The cubic root of 8720042704 is about 2058.2882931146.

The spelling of 8720042704 in words is "eight billion, seven hundred twenty million, forty-two thousand, seven hundred four".