3689668 has 12 divisors (see below), whose sum is σ = 6497680. Its totient is φ = 1833192.

The previous prime is 3689633. The next prime is 3689669. The reversal of 3689668 is 8669863.

It is a happy number.

It is a super-2 number, since 2×3689668² = 27227299900448, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3689669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2178 + ... + 3481.

Almost surely, 2^3689668 is an apocalyptic number.

It is an amenable number.

3689668 is a deficient number, since it is larger than the sum of its proper divisors (2808012).

3689668 is a wasteful number, since it uses less digits than its factorization.

3689668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5826 (or 5824 counting only the distinct ones).

The product of its digits is 373248, while the sum is 46.

The square root of 3689668 is about 1920.8508531377. The cubic root of 3689668 is about 154.5239364819.

The spelling of 3689668 in words is "three million, six hundred eighty-nine thousand, six hundred sixty-eight".