Subtracting 3894 from its reverse (4983), we obtain a square (1089 = 332).
It is an alternating number because its digits alternate between odd and even.
It is a Curzon number.
It is a plaindrome in base 15.
It is a congruent number.
It is an unprimeable number.
23894 is an apocalyptic number.
It is a practical number, because each smaller number is the sum of distinct divisors of 3894, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4320).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
3894 is a wasteful number, since it uses less digits than its factorization.
3894 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 75.
The square root of 3894 is about 62.4019230473. The cubic root of 3894 is about 15.7325329160.
The spelling of 3894 in words is "three thousand, eight hundred ninety-four".