3660657 has 64 divisors (see below), whose sum is σ = 6967296. Its totient is φ = 1647360.

The previous prime is 3660653. The next prime is 3660667. The reversal of 3660657 is 7560663.

It is not a de Polignac number, because 3660657 - 2² = 3660653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (3660653) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69043 + ... + 69095.

It is an arithmetic number, because the mean of its divisors is an integer number (108864).

Almost surely, 2^3660657 is an apocalyptic number.

It is an amenable number.

3660657 is a deficient number, since it is larger than the sum of its proper divisors (3306639).

3660657 is a wasteful number, since it uses less digits than its factorization.

3660657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 3660657 is about 1913.2843489665. The cubic root of 3660657 is about 154.1178751206.

It can be divided in two parts, 36606 and 57, that added together give a palindrome (36663).

The spelling of 3660657 in words is "three million, six hundred sixty thousand, six hundred fifty-seven".