It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91448.
It is an unprimeable number.
291448 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 91448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103680).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
91448 is a wasteful number, since it uses less digits than its factorization.
91448 is an evil number, because the sum of its binary digits is even.
The square root of 91448 is about 302.4037036810. The cubic root of 91448 is about 45.0531060274.
The spelling of 91448 in words is "ninety-one thousand, four hundred forty-eight".