It is a tau number, because it is divible by the number of its divisors (8).
It is a plaindrome in base 16.
It is a congruent number.
It is an unprimeable number.
91768 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
291768 is an apocalyptic number.
It is an amenable number.
91768 is a wasteful number, since it uses less digits than its factorization.
91768 is an odious number, because the sum of its binary digits is odd.
The square root of 91768 is about 302.9323356791. The cubic root of 91768 is about 45.1055956400.
The spelling of 91768 in words is "ninety-one thousand, seven hundred sixty-eight".