13964666 has 8 divisors (see below), whose sum is σ = 21112320. Its totient is φ = 6927228.

The previous prime is 13964659. The next prime is 13964729. The reversal of 13964666 is 66646931.

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

It is a Curzon 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, 27236 + ... + 27743.

It is an arithmetic number, because the mean of its divisors is an integer number (2639040).

Almost surely, 2^13964666 is an apocalyptic number.

13964666 is a deficient number, since it is larger than the sum of its proper divisors (7147654).

13964666 is a wasteful number, since it uses less digits than its factorization.

13964666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55108.

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

The square root of 13964666 is about 3736.9326994207. The cubic root of 13964666 is about 240.8112937717.

The spelling of 13964666 in words is "thirteen million, nine hundred sixty-four thousand, six hundred sixty-six".