11983868 has 24 divisors (see below), whose sum is σ = 22687392. Its totient is φ = 5505984.

The previous prime is 11983859. The next prime is 11983879. The reversal of 11983868 is 86838911.

It is a happy number.

It is a super-2 number, since 2×11983868² = 287226184482848, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16121 + ... + 16847.

It is an arithmetic number, because the mean of its divisors is an integer number (945308).

Almost surely, 2^11983868 is an apocalyptic number.

It is an amenable number.

11983868 is a deficient number, since it is larger than the sum of its proper divisors (10703524).

11983868 is a wasteful number, since it uses less digits than its factorization.

11983868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1061 (or 1059 counting only the distinct ones).

The product of its digits is 82944, while the sum is 44.

The square root of 11983868 is about 3461.7723784212. The cubic root of 11983868 is about 228.8402106695.

The spelling of 11983868 in words is "eleven million, nine hundred eighty-three thousand, eight hundred sixty-eight".