8728704 has 48 divisors (see below), whose sum is σ = 25121070. Its totient is φ = 2909184.

The previous prime is 8728691. The next prime is 8728711. The reversal of 8728704 is 4078278.

It can be written as a sum of positive squares in only one way, i.e., 8714304 + 14400 = 2952^2 + 120^2 .

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2637 + ... + 4940.

Almost surely, 2^8728704 is an apocalyptic number.

It is an amenable number.

8728704 is an abundant number, since it is smaller than the sum of its proper divisors (16392366).

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

8728704 is a wasteful number, since it uses less digits than its factorization.

8728704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7597 (or 7582 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 36.

The square root of 8728704 is about 2954.4380176270. The cubic root of 8728704 is about 205.8969541497.

The spelling of 8728704 in words is "eight million, seven hundred twenty-eight thousand, seven hundred four".