Subtracting 3855 from its reverse (5583), we obtain a cube (1728 = 123).
3855 is nontrivially palindromic in base 2, base 4 and base 16.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a 11-Lehmer number, since φ(3855) divides (3855-1)11.
It is a cyclic number.
3855 is an undulating number in base 16.
It is a zygodrome in base 2 and base 4.
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 3855.
In principle, a polygon with 3855 sides can be constructed with ruler and compass.
3855 is a wasteful number, since it uses less digits than its factorization.
3855 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 265.
The square root of 3855 is about 62.0886463051. The cubic root of 3855 is about 15.6798340084.
The spelling of 3855 in words is "three thousand, eight hundred fifty-five".