8650660 has 24 divisors (see below), whose sum is σ = 18511416. Its totient is φ = 3394560.

The previous prime is 8650657. The next prime is 8650667. The reversal of 8650660 is 660568.

It can be written as a sum of positive squares in 4 ways, for example, as 1132096 + 7518564 = 1064^2 + 2742^2 .

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (8650667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3021 + ... + 5140.

It is an arithmetic number, because the mean of its divisors is an integer number (771309).

Almost surely, 2^8650660 is an apocalyptic number.

It is an amenable number.

8650660 is an abundant number, since it is smaller than the sum of its proper divisors (9860756).

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

8650660 is a wasteful number, since it uses less digits than its factorization.

8650660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8223 (or 8221 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 8650660 is about 2941.2004351965. The cubic root of 8650660 is about 205.2814693977.

The spelling of 8650660 in words is "eight million, six hundred fifty thousand, six hundred sixty".