3664663 has 4 divisors (see below), whose sum is σ = 3857560. Its totient is φ = 3471768.

The previous prime is 3664657. The next prime is 3664679.

3664663 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 3664663 - 2⁵ = 3664631 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3664693) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96420 + ... + 96457.

It is an arithmetic number, because the mean of its divisors is an integer number (964390).

Almost surely, 2^3664663 is an apocalyptic number.

3664663 is a deficient number, since it is larger than the sum of its proper divisors (192897).

3664663 is a wasteful number, since it uses less digits than its factorization.

3664663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192896.

The product of its digits is 46656, while the sum is 34.

The square root of 3664663 is about 1914.3309536232. The cubic root of 3664663 is about 154.1740736965.

The spelling of 3664663 in words is "three million, six hundred sixty-four thousand, six hundred sixty-three".