3690664 has 8 divisors (see below), whose sum is σ = 6920010. Its totient is φ = 1845328.

The previous prime is 3690629. The next prime is 3690671. The reversal of 3690664 is 4660963.

It can be written as a sum of positive squares in only one way, i.e., 3034564 + 656100 = 1742^2 + 810^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 230659 + ... + 230674.

Almost surely, 2^3690664 is an apocalyptic number.

It is an amenable number.

3690664 is a deficient number, since it is larger than the sum of its proper divisors (3229346).

3690664 is a wasteful number, since it uses less digits than its factorization.

3690664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461339 (or 461335 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 3690664 is about 1921.1100957519. The cubic root of 3690664 is about 154.5378394486.

Subtracting 3690664 from its reverse (4660963), we obtain a cube (970299 = 99³).

The spelling of 3690664 in words is "three million, six hundred ninety thousand, six hundred sixty-four".