11993966 has 8 divisors (see below), whose sum is σ = 18007704. Its totient is φ = 5991400.

The previous prime is 11993963. The next prime is 11993987. The reversal of 11993966 is 66939911.

It is a happy number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11993963) by changing a digit.

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, 836 + ... + 4968.

It is an arithmetic number, because the mean of its divisors is an integer number (2250963).

Almost surely, 2^11993966 is an apocalyptic number.

11993966 is a deficient number, since it is larger than the sum of its proper divisors (6013738).

11993966 is a wasteful number, since it uses less digits than its factorization.

11993966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5586.

The product of its digits is 78732, while the sum is 44.

The square root of 11993966 is about 3463.2305727456. The cubic root of 11993966 is about 228.9044687118.

The spelling of 11993966 in words is "eleven million, nine hundred ninety-three thousand, nine hundred sixty-six".