11982866 has 8 divisors (see below), whose sum is σ = 20542080. Its totient is φ = 5135508.

The previous prime is 11982851. The next prime is 11982881. The reversal of 11982866 is 66828911.

It is an interprime number because it is at equal distance from previous prime (11982851) and next prime (11982881).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 427946 + ... + 427973.

It is an arithmetic number, because the mean of its divisors is an integer number (2567760).

Almost surely, 2^11982866 is an apocalyptic number.

11982866 is a deficient number, since it is larger than the sum of its proper divisors (8559214).

11982866 is an equidigital number, since it uses as much as digits as its factorization.

11982866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 855928.

The product of its digits is 41472, while the sum is 41.

The square root of 11982866 is about 3461.6276518424. The cubic root of 11982866 is about 228.8338325318.

The spelling of 11982866 in words is "eleven million, nine hundred eighty-two thousand, eight hundred sixty-six".