6866868 has 12 divisors (see below), whose sum is σ = 16022720. Its totient is φ = 2288952.

The previous prime is 6866863. The next prime is 6866879. The reversal of 6866868 is 8686686.

6866868 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×6866868² = 94307752258848, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6866863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 286108 + ... + 286131.

Almost surely, 2^6866868 is an apocalyptic number.

It is an amenable number.

6866868 is an abundant number, since it is smaller than the sum of its proper divisors (9155852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6866868 is a wasteful number, since it uses less digits than its factorization.

6866868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572246 (or 572244 counting only the distinct ones).

The product of its digits is 663552, while the sum is 48.

The square root of 6866868 is about 2620.4709500393. The cubic root of 6866868 is about 190.0726222848.

The spelling of 6866868 in words is "six million, eight hundred sixty-six thousand, eight hundred sixty-eight".