8659660 has 12 divisors (see below), whose sum is σ = 18185328. Its totient is φ = 3463856.

The previous prime is 8659643. The next prime is 8659663. The reversal of 8659660 is 669568.

It is a super-2 number, since 2×8659660² = 149979422631200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8659663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216472 + ... + 216511.

It is an arithmetic number, because the mean of its divisors is an integer number (1515444).

Almost surely, 2^8659660 is an apocalyptic number.

It is an amenable number.

8659660 is an abundant number, since it is smaller than the sum of its proper divisors (9525668).

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

8659660 is a wasteful number, since it uses less digits than its factorization.

8659660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432992 (or 432990 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 8659660 is about 2942.7300249938. The cubic root of 8659660 is about 205.3526351770.

The spelling of 8659660 in words is "eight million, six hundred fifty-nine thousand, six hundred sixty".