6684774 is nontrivially palindromic in base 16.
It is a Curzon number.
It is a zygodrome in base 16.
It is a congruent number.
In principle, a polygon with 6684774 sides can be constructed with ruler and compass.
Almost surely, 26684774 is an apocalyptic number.
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
6684774 is a wasteful number, since it uses less digits than its factorization.
6684774 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 65559.
The square root of 6684774 is about 2585.4929897410. The cubic root of 6684774 is about 188.3774482678.
The spelling of 6684774 in words is "six million, six hundred eighty-four thousand, seven hundred seventy-four".