6999868 has 6 divisors (see below), whose sum is σ = 12249776. Its totient is φ = 3499932.

The previous prime is 6999857. The next prime is 6999877. The reversal of 6999868 is 8689996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 874980 + ... + 874987.

Almost surely, 2^6999868 is an apocalyptic number.

It is an amenable number.

6999868 is a deficient number, since it is larger than the sum of its proper divisors (5249908).

6999868 is a wasteful number, since it uses less digits than its factorization.

6999868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749971 (or 1749969 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 55.

The square root of 6999868 is about 2645.7263652918. The cubic root of 6999868 is about 191.2919158558.

The spelling of 6999868 in words is "six million, nine hundred ninety-nine thousand, eight hundred sixty-eight".