90624 is nontrivially palindromic in base 14.
It is a trimorphic number since its cube, 744268574490624, ends in 90624.
It is a self number, because there is not a number n which added to its sum of digits gives 90624.
It is an unprimeable number.
290624 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 90624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122760).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
90624 is an equidigital number, since it uses as much as digits as its factorization.
90624 is an evil number, because the sum of its binary digits is even.
The square root of 90624 is about 301.0382035556. The cubic root of 90624 is about 44.9173792640.
The spelling of 90624 in words is "ninety thousand, six hundred twenty-four".