It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
6998669 is a strobogrammatic number because it is the same when read upside-down.
It is a Duffinian number.
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 6998669.
It is a congruent number.
Almost surely, 26998669 is an apocalyptic number.
It is an amenable number.
6998669 is a wasteful number, since it uses less digits than its factorization.
6998669 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1267.
The square root of 6998669 is about 2645.4997637498. The cubic root of 6998669 is about 191.2809931687.
The spelling of 6998669 in words is "six million, nine hundred ninety-eight thousand, six hundred sixty-nine".