3600666 has 32 divisors (see below), whose sum is σ = 8078400. Its totient is φ = 1188720.

The previous prime is 3600659. The next prime is 3600679. The reversal of 3600666 is 6660063.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6820 + ... + 7328.

It is an arithmetic number, because the mean of its divisors is an integer number (252450).

Almost surely, 2^3600666 is an apocalyptic number.

3600666 is an abundant number, since it is smaller than the sum of its proper divisors (4477734).

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

3600666 is a wasteful number, since it uses less digits than its factorization.

3600666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 651 (or 645 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

The square root of 3600666 is about 1897.5420943947. The cubic root of 3600666 is about 153.2713370456.

The spelling of 3600666 in words is "three million, six hundred thousand, six hundred sixty-six".