Adding to 90300 its reverse (309), we get a palindrome (90609).
It is a nialpdrome in base 12.
It is a congruent number.
It is an unprimeable number.
90300 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
290300 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 90300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152768).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90300 is a wasteful number, since it uses less digits than its factorization.
90300 is an evil number, because the sum of its binary digits is even.
The square root of 90300 is about 300.4995840263. The cubic root of 90300 is about 44.8637856279.
The spelling of 90300 in words is "ninety thousand, three hundred".