678790 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
It is an Ulam number.
It is a plaindrome in base 12.
It is a congruent number.
It is an unprimeable number.
2678790 is an apocalyptic number.
678790 is a wasteful number, since it uses less digits than its factorization.
678790 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 9711.
The square root of 678790 is about 823.8871281917. The cubic root of 678790 is about 87.8844040058.
The spelling of 678790 in words is "six hundred seventy-eight thousand, seven hundred ninety".