6847687 has 16 divisors (see below), whose sum is σ = 8623872. Its totient is φ = 5281920.

The previous prime is 6847681. The next prime is 6847691. The reversal of 6847687 is 7867486.

6847687 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 6847687 - 2¹⁹ = 6323399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6847681) 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, 8308 + ... + 9094.

It is an arithmetic number, because the mean of its divisors is an integer number (538992).

Almost surely, 2^6847687 is an apocalyptic number.

6847687 is a deficient number, since it is larger than the sum of its proper divisors (1776185).

6847687 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (6847686) it forms an eRAP, since the sums of their prime factors are consecutive (917 and 918).

6847687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 918.

The product of its digits is 451584, while the sum is 46.

The square root of 6847687 is about 2616.8085524165. The cubic root of 6847687 is about 189.8954826827.

The spelling of 6847687 in words is "six million, eight hundred forty-seven thousand, six hundred eighty-seven".