3722666 has 16 divisors (see below), whose sum is σ = 5832960. Its totient is φ = 1779840.

The previous prime is 3722629. The next prime is 3722683. The reversal of 3722666 is 6662273.

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, 5705 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (364560).

Almost surely, 2^3722666 is an apocalyptic number.

3722666 is a deficient number, since it is larger than the sum of its proper divisors (2110294).

3722666 is a wasteful number, since it uses less digits than its factorization.

3722666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749.

The product of its digits is 18144, while the sum is 32.

The square root of 3722666 is about 1929.4211567203. The cubic root of 3722666 is about 154.9832239908.

The spelling of 3722666 in words is "three million, seven hundred twenty-two thousand, six hundred sixty-six".