3723666 has 16 divisors (see below), whose sum is σ = 7553088. Its totient is φ = 1223600.

The previous prime is 3723649. The next prime is 3723679. The reversal of 3723666 is 6663273.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon 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, 3945 + ... + 4796.

It is an arithmetic number, because the mean of its divisors is an integer number (472068).

Almost surely, 2^3723666 is an apocalyptic number.

3723666 is an abundant number, since it is smaller than the sum of its proper divisors (3829422).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3723666 is a wasteful number, since it uses less digits than its factorization.

3723666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8817.

The product of its digits is 27216, while the sum is 33.

The square root of 3723666 is about 1929.6802843995. The cubic root of 3723666 is about 154.9971001886.

The spelling of 3723666 in words is "three million, seven hundred twenty-three thousand, six hundred sixty-six".