3690665 has 8 divisors (see below), whose sum is σ = 4831488. Its totient is φ = 2684080.

The previous prime is 3690629. The next prime is 3690671. The reversal of 3690665 is 5660963.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-3690665 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33497 + ... + 33606.

It is an arithmetic number, because the mean of its divisors is an integer number (603936).

Almost surely, 2^3690665 is an apocalyptic number.

It is an amenable number.

3690665 is a deficient number, since it is larger than the sum of its proper divisors (1140823).

3690665 is a wasteful number, since it uses less digits than its factorization.

3690665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67119.

The product of its (nonzero) digits is 29160, while the sum is 35.

The square root of 3690665 is about 1921.1103560181. The cubic root of 3690665 is about 154.5378534062.

The spelling of 3690665 in words is "three million, six hundred ninety thousand, six hundred sixty-five".