118689984 has 84 divisors (see below), whose sum is σ = 388817104. Its totient is φ = 33910272.

The previous prime is 118689983. The next prime is 118689997. The reversal of 118689984 is 489986811.

It is a tau number, because it is divible by the number of its divisors (84).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 118689984.

It is not an unprimeable number, because it can be changed into a prime (118689983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10687 + ... + 18750.

Almost surely, 2^118689984 is an apocalyptic number.

118689984 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

118689984 is an abundant number, since it is smaller than the sum of its proper divisors (270127120).

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

118689984 is a wasteful number, since it uses less digits than its factorization.

118689984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29462 (or 29449 counting only the distinct ones).

The product of its digits is 995328, while the sum is 54.

The square root of 118689984 is about 10894.4932878955. The cubic root of 118689984 is about 491.4409672631.

The spelling of 118689984 in words is "one hundred eighteen million, six hundred eighty-nine thousand, nine hundred eighty-four".