8670825 has 36 divisors (see below), whose sum is σ = 15741180. Its totient is φ = 4561920.

The previous prime is 8670811. The next prime is 8670863. The reversal of 8670825 is 5280768.

8670825 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 2214144 + 6456681 = 1488^2 + 2541^2 .

It is not a de Polignac number, because 8670825 - 2⁹ = 8670313 is a prime.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 8670825.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 19809 + ... + 20241.

It is an arithmetic number, because the mean of its divisors is an integer number (437255).

Almost surely, 2^8670825 is an apocalyptic number.

It is an amenable number.

8670825 is a deficient number, since it is larger than the sum of its proper divisors (7070355).

8670825 is a wasteful number, since it uses less digits than its factorization.

8670825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 538 (or 530 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 8670825 is about 2944.6264618793. The cubic root of 8670825 is about 205.4408517857.

The spelling of 8670825 in words is "eight million, six hundred seventy thousand, eight hundred twenty-five".