3638966 has 8 divisors (see below), whose sum is σ = 5634624. Its totient is φ = 1760760.

The previous prime is 3638959. The next prime is 3638993. The reversal of 3638966 is 6698363.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29285 + ... + 29408.

It is an arithmetic number, because the mean of its divisors is an integer number (704328).

Almost surely, 2^3638966 is an apocalyptic number.

3638966 is a deficient number, since it is larger than the sum of its proper divisors (1995658).

3638966 is a wasteful number, since it uses less digits than its factorization.

3638966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58726.

The product of its digits is 139968, while the sum is 41.

The square root of 3638966 is about 1907.6074019567. The cubic root of 3638966 is about 153.8128665290.

The spelling of 3638966 in words is "three million, six hundred thirty-eight thousand, nine hundred sixty-six".