7686 is nontrivially palindromic in base 13.
7686 is an undulating number in base 11.
It is a Curzon number.
It is a nialpdrome in base 6.
It is a congruent number.
27686 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 7686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9672).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
7686 is a wasteful number, since it uses less digits than its factorization.
7686 is an evil number, because the sum of its binary digits is even.
The square root of 7686 is about 87.6698351772. The cubic root of 7686 is about 19.7348331990.
The spelling of 7686 in words is "seven thousand, six hundred eighty-six".