8540660 has 24 divisors (see below), whose sum is σ = 18354336. Its totient is φ = 3336480.

The previous prime is 8540639. The next prime is 8540683. The reversal of 8540660 is 660458.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4106 + ... + 5825.

It is an arithmetic number, because the mean of its divisors is an integer number (764764).

Almost surely, 2^8540660 is an apocalyptic number.

It is an amenable number.

8540660 is an abundant number, since it is smaller than the sum of its proper divisors (9813676).

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

8540660 is a wasteful number, since it uses less digits than its factorization.

8540660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9983 (or 9981 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 8540660 is about 2922.4407607341. The cubic root of 8540660 is about 204.4076495517.

The spelling of 8540660 in words is "eight million, five hundred forty thousand, six hundred sixty".