It is a d-powerful number, because it can be written as 29 + 75 + 94 + 8 + 46 .
It is a nialpdrome in base 6 and base 8.
It is a congruent number.
227984 is an apocalyptic number.
27984 is a gapful number since it is divisible by the number (24) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 27984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40176).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
27984 is a wasteful number, since it uses less digits than its factorization.
27984 is an odious number, because the sum of its binary digits is odd.
The square root of 27984 is about 167.2841893306. The cubic root of 27984 is about 30.3601046377.
The spelling of 27984 in words is "twenty-seven thousand, nine hundred eighty-four".