3697666 has 16 divisors (see below), whose sum is σ = 6672960. Its totient is φ = 1501200.

The previous prime is 3697657. The next prime is 3697691. The reversal of 3697666 is 6667963.

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, 6685 + ... + 7216.

It is an arithmetic number, because the mean of its divisors is an integer number (417060).

Almost surely, 2^3697666 is an apocalyptic number.

3697666 is a deficient number, since it is larger than the sum of its proper divisors (2975294).

3697666 is a wasteful number, since it uses less digits than its factorization.

3697666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13929.

The product of its digits is 244944, while the sum is 43.

The square root of 3697666 is about 1922.9316160488. The cubic root of 3697666 is about 154.6355084464.

The spelling of 3697666 in words is "three million, six hundred ninety-seven thousand, six hundred sixty-six".