It is a congruent number.
It is an unprimeable number.
98790 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
298790 is an apocalyptic number.
98790 is the 444-th triangular number.
It is a practical number, because each smaller number is the sum of distinct divisors of 98790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123120).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
98790 is a wasteful number, since it uses less digits than its factorization.
98790 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 136.
The square root of 98790 is about 314.3087653884. The cubic root of 98790 is about 46.2279173860.
The spelling of 98790 in words is "ninety-eight thousand, seven hundred ninety".