8718660 has 36 divisors (see below), whose sum is σ = 26447148. Its totient is φ = 2324928.

The previous prime is 8718649. The next prime is 8718673. The reversal of 8718660 is 668178.

It can be written as a sum of positive squares in 2 ways, for example, as 3326976 + 5391684 = 1824^2 + 2322^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24039 + ... + 24398.

It is an arithmetic number, because the mean of its divisors is an integer number (734643).

Almost surely, 2^8718660 is an apocalyptic number.

It is an amenable number.

8718660 is an abundant number, since it is smaller than the sum of its proper divisors (17728488).

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

8718660 is a wasteful number, since it uses less digits than its factorization.

8718660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48452 (or 48447 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 8718660 is about 2952.7377126999. The cubic root of 8718660 is about 205.8179495716.

The spelling of 8718660 in words is "eight million, seven hundred eighteen thousand, six hundred sixty".