8663625 has 64 divisors (see below), whose sum is σ = 17072640. Its totient is φ = 4320000.

The previous prime is 8663621. The next prime is 8663653. The reversal of 8663625 is 5263668.

It is not a de Polignac number, because 8663625 - 2² = 8663621 is a prime.

Its product of digits (51840) is a multiple of the sum of its prime factors (192).

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 8663625.

It is not an unprimeable number, because it can be changed into a prime (8663621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 57300 + ... + 57450.

It is an arithmetic number, because the mean of its divisors is an integer number (266760).

Almost surely, 2^8663625 is an apocalyptic number.

8663625 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

8663625 is a deficient number, since it is larger than the sum of its proper divisors (8409015).

8663625 is a wasteful number, since it uses less digits than its factorization.

8663625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 176 counting only the distinct ones).

The product of its digits is 51840, while the sum is 36.

The square root of 8663625 is about 2943.4036420444. The cubic root of 8663625 is about 205.3839720101.

The spelling of 8663625 in words is "eight million, six hundred sixty-three thousand, six hundred twenty-five".