It is a trimorphic number since its cube, 706452851076890624, ends in 890624.
It is a nialpdrome in base 16.
It is a congruent number.
It is an unprimeable number.
890624 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
2890624 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 890624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1048572).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
890624 is an equidigital number, since it uses as much as digits as its factorization.
890624 is an evil number, because the sum of its binary digits is even.
The square root of 890624 is about 943.7287745958. The cubic root of 890624 is about 96.2124922725.
The spelling of 890624 in words is "eight hundred ninety thousand, six hundred twenty-four".