3690806 has 16 divisors (see below), whose sum is σ = 6385824. Its totient is φ = 1567104.

The previous prime is 3690803. The next prime is 3690821. The reversal of 3690806 is 6080963.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3690803) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 416 + ... + 2748.

It is an arithmetic number, because the mean of its divisors is an integer number (399114).

Almost surely, 2^3690806 is an apocalyptic number.

3690806 is a deficient number, since it is larger than the sum of its proper divisors (2695018).

3690806 is a wasteful number, since it uses less digits than its factorization.

3690806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2455.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 3690806 is about 1921.1470531950. The cubic root of 3690806 is about 154.5398213948.

The spelling of 3690806 in words is "three million, six hundred ninety thousand, eight hundred six".