6887 is nontrivially palindromic in base 6.
It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7886 = 2 ⋅3943.
It is a cyclic number.
It is a Duffinian number.
6887 is an undulating number in base 6.
It is a congruent number.
It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 6887.
26887 is an apocalyptic number.
6887 is an equidigital number, since it uses as much as digits as its factorization.
6887 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 168.
The square root of 6887 is about 82.9879509327. The cubic root of 6887 is about 19.0258190077.
Subtracting 6887 from its reverse (7886), we obtain a palindrome (999).
The spelling of 6887 in words is "six thousand, eight hundred eighty-seven".