8704865 has 16 divisors (see below), whose sum is σ = 11334288. Its totient is φ = 6379776.

The previous prime is 8704853. The next prime is 8704889. The reversal of 8704865 is 5684078.

It can be written as a sum of positive squares in 8 ways, for example, as 3139984 + 5564881 = 1772^2 + 2359^2 .

It is not a de Polignac number, because 8704865 - 2⁸ = 8704609 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9779 + ... + 10631.

It is an arithmetic number, because the mean of its divisors is an integer number (708393).

Almost surely, 2^8704865 is an apocalyptic number.

It is an amenable number.

8704865 is a deficient number, since it is larger than the sum of its proper divisors (2629423).

8704865 is a wasteful number, since it uses less digits than its factorization.

8704865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 8704865 is about 2950.4008202277. The cubic root of 8704865 is about 205.7093412383.

The spelling of 8704865 in words is "eight million, seven hundred four thousand, eight hundred sixty-five".