111984 has 20 divisors (see below), whose sum is σ = 289416. Its totient is φ = 37312.

The previous prime is 111977. The next prime is 111997. The reversal of 111984 is 489111.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119 + ... + 1214.

2¹¹¹⁹⁸⁴ is an apocalyptic number.

It is an amenable number.

111984 is an abundant number, since it is smaller than the sum of its proper divisors (177432).

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

111984 is a wasteful number, since it uses less digits than its factorization.

111984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2344 (or 2338 counting only the distinct ones).

The product of its digits is 288, while the sum is 24.

The square root of 111984 is about 334.6401051876. The cubic root of 111984 is about 48.2005498006.

The spelling of 111984 in words is "one hundred eleven thousand, nine hundred eighty-four".