6998668 has 12 divisors (see below), whose sum is σ = 12270832. Its totient is φ = 3492720.

The previous prime is 6998627. The next prime is 6998681. The reversal of 6998668 is 8668996.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1321 + ... + 3967.

Almost surely, 2^6998668 is an apocalyptic number.

It is an amenable number.

6998668 is a deficient number, since it is larger than the sum of its proper divisors (5272164).

6998668 is a wasteful number, since it uses less digits than its factorization.

6998668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312 (or 3310 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 52.

The square root of 6998668 is about 2645.4995747495. The cubic root of 6998668 is about 191.2809840583.

The spelling of 6998668 in words is "six million, nine hundred ninety-eight thousand, six hundred sixty-eight".