Adding to 6784 its product of digits (1344), we get a triangular number (8128 = T127).
It is a tau number, because it is divible by the number of its divisors (16).
It is an Ulam number.
It is a plaindrome in base 14.
26784 is an apocalyptic number.
6784 is a gapful number since it is divisible by the number (64) formed by its first and last digit.
It is an amenable number.
It is a practical number, because each smaller number is the sum of distinct divisors of 6784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6885).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6784 is an equidigital number, since it uses as much as digits as its factorization.
6784 is an evil number, because the sum of its binary digits is even.
The square root of 6784 is about 82.3650411279. The cubic root of 6784 is about 18.9304939647.
The spelling of 6784 in words is "six thousand, seven hundred eighty-four".