It is a tau number, because it is divible by the number of its divisors (18).
It is an Ulam number.
It is a congruent number.
It is an unprimeable number.
89172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
289172 is an apocalyptic number.
It is an amenable number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
89172 is a wasteful number, since it uses less digits than its factorization.
89172 is an evil number, because the sum of its binary digits is even.
The square root of 89172 is about 298.6168113151. The cubic root of 89172 is about 44.6761941014.
The spelling of 89172 in words is "eighty-nine thousand, one hundred seventy-two".