Adding to 1705 its reverse (5071), we get a palindrome (6776).
1705 is nontrivially palindromic in base 4.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a tribonacci number.
It is a Duffinian number.
1705 is a lucky number.
It is a plaindrome in base 14 and base 15.
It is a nialpdrome in base 12.
It is a congruent number.
It is an amenable number.
1705 is a wasteful number, since it uses less digits than its factorization.
1705 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 47.
The square root of 1705 is about 41.2916456441. The cubic root of 1705 is about 11.9465212822.
The spelling of 1705 in words is "one thousand, seven hundred five".