The square root of 636804 is 798.
636804 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
636804 is a Friedman number, since it can be written as (804-6)^(6/3), using all its digits and the basic arithmetic operations.
2636804 is an apocalyptic number.
636804 is the 798-th square number.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 636804
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
636804 is a wasteful number, since it uses less digits than its factorization.
636804 is an evil number, because the sum of its binary digits is even.
The cubic root of 636804 is about 86.0336987099.
The spelling of 636804 in words is "six hundred thirty-six thousand, eight hundred four".