8728625 has 8 divisors (see below), whose sum is σ = 10893480. Its totient is φ = 6982800.

The previous prime is 8728609. The next prime is 8728627. The reversal of 8728625 is 5268278.

It can be written as a sum of positive squares in 4 ways, for example, as 2337841 + 6390784 = 1529^2 + 2528^2 .

It is not a de Polignac number, because 8728625 - 2⁴ = 8728609 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8728627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34790 + ... + 35039.

It is an arithmetic number, because the mean of its divisors is an integer number (1361685).

Almost surely, 2^8728625 is an apocalyptic number.

It is an amenable number.

8728625 is a deficient number, since it is larger than the sum of its proper divisors (2164855).

8728625 is an equidigital number, since it uses as much as digits as its factorization.

8728625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69844 (or 69834 counting only the distinct ones).

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

The square root of 8728625 is about 2954.4246478799. The cubic root of 8728625 is about 205.8963329843.

The spelling of 8728625 in words is "eight million, seven hundred twenty-eight thousand, six hundred twenty-five".