11988984 has 32 divisors (see below), whose sum is σ = 34254720. Its totient is φ = 3425376.

The previous prime is 11988979. The next prime is 11988997. The reversal of 11988984 is 48988911.

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, 35514 + ... + 35849.

It is an arithmetic number, because the mean of its divisors is an integer number (1070460).

Almost surely, 2^11988984 is an apocalyptic number.

11988984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11988984 is an abundant number, since it is smaller than the sum of its proper divisors (22265736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11988984 is a wasteful number, since it uses less digits than its factorization.

11988984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71379 (or 71375 counting only the distinct ones).

The product of its digits is 165888, while the sum is 48.

The square root of 11988984 is about 3462.5112274186. The cubic root of 11988984 is about 228.8727705508.

The spelling of 11988984 in words is "eleven million, nine hundred eighty-eight thousand, nine hundred eighty-four".