Subtracting from 89388 its reverse (88398), we obtain a triangular number (990 = T44).
It is a tau number, because it is divible by the number of its divisors (36).
289388 is an apocalyptic number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 89388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122304).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89388 is a wasteful number, since it uses less digits than its factorization.
89388 is an odious number, because the sum of its binary digits is odd.
The square root of 89388 is about 298.9782600792. The cubic root of 89388 is about 44.7122378396.
The spelling of 89388 in words is "eighty-nine thousand, three hundred eighty-eight".