Adding to 8364 its sum of digits (21), we get a triangular number (8385 = T129).
It is a self number, because there is not a number n which added to its sum of digits gives 8364.
28364 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 8364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10584).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
8364 is a wasteful number, since it uses less digits than its factorization.
8364 is an odious number, because the sum of its binary digits is odd.
The square root of 8364 is about 91.4549069214. The cubic root of 8364 is about 20.2988456558.
The spelling of 8364 in words is "eight thousand, three hundred sixty-four".