8720768 has 32 divisors (see below), whose sum is σ = 19857360. Its totient is φ = 3737088.

The previous prime is 8720729. The next prime is 8720771. The reversal of 8720768 is 8670278.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3971 + ... + 5762.

Almost surely, 2^8720768 is an apocalyptic number.

It is an amenable number.

8720768 is an abundant number, since it is smaller than the sum of its proper divisors (11136592).

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

8720768 is an equidigital number, since it uses as much as digits as its factorization.

8720768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754 (or 9742 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 8720768 is about 2953.0946479922. The cubic root of 8720768 is about 205.8345358083.

The spelling of 8720768 in words is "eight million, seven hundred twenty thousand, seven hundred sixty-eight".