It is a sphenic number, since it is the product of 3 distinct primes.
It is a Duffinian number.
3685 is a lucky number.
It is a plaindrome in base 15.
It is a nialpdrome in base 16.
It is a congruent number.
It is an unprimeable number.
3685 is a Friedman number, since it can be written as 5*(8+3^6), using all its digits and the basic arithmetic operations.
It is an amenable number.
3685 is a wasteful number, since it uses less digits than its factorization.
3685 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 83.
The square root of 3685 is about 60.7042008431. The cubic root of 3685 is about 15.4458743431.
Subtracting from 3685 its sum of digits (22), we obtain a palindrome (3663).
The spelling of 3685 in words is "three thousand, six hundred eighty-five".