3664666 has 4 divisors (see below), whose sum is σ = 5497002. Its totient is φ = 1832332.

The previous prime is 3664657. The next prime is 3664679. The reversal of 3664666 is 6664663.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3500641 + 164025 = 1871^2 + 405^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 916165 + ... + 916168.

Almost surely, 2^3664666 is an apocalyptic number.

3664666 is a deficient number, since it is larger than the sum of its proper divisors (1832336).

3664666 is a wasteful number, since it uses less digits than its factorization.

3664666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1832335.

The product of its digits is 93312, while the sum is 37.

The square root of 3664666 is about 1914.3317371866. The cubic root of 3664666 is about 154.1741157670.

The spelling of 3664666 in words is "three million, six hundred sixty-four thousand, six hundred sixty-six".