16789 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.
It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.
It is a cyclic number.
It is an alternating number because its digits alternate between odd and even.
It is a Duffinian number.
It is a plaindrome in base 10.
It is a nialpdrome in base 7 and base 12.
It is a self number, because there is not a number n which added to its sum of digits gives 16789.
It is a congruent number.
216789 is an apocalyptic number.
It is an amenable number.
16789 is a wasteful number, since it uses less digits than its factorization.
16789 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 266.
The square root of 16789 is about 129.5723735987. The cubic root of 16789 is about 25.6059922496.
The spelling of 16789 in words is "sixteen thousand, seven hundred eighty-nine".