6939868 has 24 divisors (see below), whose sum is σ = 13436192. Its totient is φ = 3115584.

The previous prime is 6939827. The next prime is 6939887. The reversal of 6939868 is 8689396.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 121 + ... + 3727.

Almost surely, 2^6939868 is an apocalyptic number.

It is an amenable number.

6939868 is a deficient number, since it is larger than the sum of its proper divisors (6496324).

6939868 is a wasteful number, since it uses less digits than its factorization.

6939868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3661 (or 3659 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 6939868 is about 2634.3629210874. The cubic root of 6939868 is about 190.7437881135.

The spelling of 6939868 in words is "six million, nine hundred thirty-nine thousand, eight hundred sixty-eight".