8635725 has 36 divisors (see below), whose sum is σ = 17680416. Its totient is φ = 3947040.

The previous prime is 8635723. The next prime is 8635729. The reversal of 8635725 is 5275368.

8635725 is a `hidden beast` number, since 86 + 3 + 572 + 5 = 666.

It is not a de Polignac number, because 8635725 - 2¹ = 8635723 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 8635725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8635723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1167 + ... + 4316.

Almost surely, 2^8635725 is an apocalyptic number.

It is an amenable number.

8635725 is an abundant number, since it is smaller than the sum of its proper divisors (9044691).

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

8635725 is a wasteful number, since it uses less digits than its factorization.

8635725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5506 (or 5498 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 8635725 is about 2938.6604090980. The cubic root of 8635725 is about 205.1632647439.

The spelling of 8635725 in words is "eight million, six hundred thirty-five thousand, seven hundred twenty-five".