It is a sphenic number, since it is the product of 3 distinct primes.
6698 is an undulating number in base 14.
It is a Curzon number.
It is a self number, because there is not a number n which added to its sum of digits gives 6698.
6698 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
26698 is an apocalyptic number.
6698 is a wasteful number, since it uses less digits than its factorization.
6698 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 216.
The square root of 6698 is about 81.8413098624. The cubic root of 6698 is about 18.8501602990.
The spelling of 6698 in words is "six thousand, six hundred ninety-eight".