3906 is nontrivially palindromic in base 5.
3906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.
3906 is a nontrivial repdigit in base 5.
It is a plaindrome in base 5 and base 15.
It is a nialpdrome in base 5, base 9 and base 16.
It is a zygodrome in base 5.
It is a congruent number.
23906 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3906, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4992).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3906 is a wasteful number, since it uses less digits than its factorization.
3906 is an evil number, because the sum of its binary digits is even.
The square root of 3906 is about 62.4979999680. The cubic root of 3906 is about 15.7486771376.
Adding to 3906 its reverse (6093), we get a palindrome (9999).
Subtracting 3906 from its reverse (6093), we obtain a 7-th power (2187 = 37).
The spelling of 3906 in words is "three thousand, nine hundred six".