8665625 has 24 divisors (see below), whose sum is σ = 11249280. Its totient is φ = 6670000.

The previous prime is 8665619. The next prime is 8665633. The reversal of 8665625 is 5265668.

It is a happy number.

It is not a de Polignac number, because 8665625 - 2⁶ = 8665561 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 146846 + ... + 146904.

It is an arithmetic number, because the mean of its divisors is an integer number (468720).

Almost surely, 2^8665625 is an apocalyptic number.

It is an amenable number.

8665625 is a deficient number, since it is larger than the sum of its proper divisors (2583655).

8665625 is an frugal number, since it uses more digits than its factorization.

8665625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 111 counting only the distinct ones).

The product of its digits is 86400, while the sum is 38.

The square root of 8665625 is about 2943.7433651730. The cubic root of 8665625 is about 205.3997751079.

The spelling of 8665625 in words is "eight million, six hundred sixty-five thousand, six hundred twenty-five".