6864681 has 16 divisors (see below), whose sum is σ = 9757440. Its totient is φ = 4280400.

The previous prime is 6864661. The next prime is 6864691. The reversal of 6864681 is 1864686.

6864681 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6864681 - 2⁷ = 6864553 is a prime.

It is a super-2 number, since 2×6864681² = 94247690463522, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6864601) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 4006 + ... + 5456.

It is an arithmetic number, because the mean of its divisors is an integer number (609840).

Almost surely, 2^6864681 is an apocalyptic number.

It is an amenable number.

6864681 is a deficient number, since it is larger than the sum of its proper divisors (2892759).

6864681 is a wasteful number, since it uses less digits than its factorization.

6864681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1556.

The product of its digits is 55296, while the sum is 39.

The square root of 6864681 is about 2620.0536254054. The cubic root of 6864681 is about 190.0524416647.

The spelling of 6864681 in words is "six million, eight hundred sixty-four thousand, six hundred eighty-one".