3688605 has 32 divisors (see below), whose sum is σ = 6652800. Its totient is φ = 1938816.

The previous prime is 3688591. The next prime is 3688613. The reversal of 3688605 is 5068863.

It is not a de Polignac number, because 3688605 - 2⁹ = 3688093 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3688605.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11862 + ... + 12168.

It is an arithmetic number, because the mean of its divisors is an integer number (207900).

Almost surely, 2^3688605 is an apocalyptic number.

It is an amenable number.

3688605 is a deficient number, since it is larger than the sum of its proper divisors (2964195).

3688605 is a wasteful number, since it uses less digits than its factorization.

3688605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 3688605 is about 1920.5741329092. The cubic root of 3688605 is about 154.5090955151.

The spelling of 3688605 in words is "three million, six hundred eighty-eight thousand, six hundred five".