6855868 has 24 divisors (see below), whose sum is σ = 12419568. Its totient is φ = 3309696.

The previous prime is 6855829. The next prime is 6855869. The reversal of 6855868 is 8685586.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6855869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15255 + ... + 15697.

It is an arithmetic number, because the mean of its divisors is an integer number (517482).

Almost surely, 2^6855868 is an apocalyptic number.

It is an amenable number.

6855868 is a deficient number, since it is larger than the sum of its proper divisors (5563700).

6855868 is a wasteful number, since it uses less digits than its factorization.

6855868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573 (or 571 counting only the distinct ones).

The product of its digits is 460800, while the sum is 46.

The square root of 6855868 is about 2618.3712494602. The cubic root of 6855868 is about 189.9710759295.

The spelling of 6855868 in words is "six million, eight hundred fifty-five thousand, eight hundred sixty-eight".