1766 is nontrivially palindromic in base 16.
1766 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.
1766 is an esthetic number in base 4, because in such base its adjacent digits differ by 1.
1766 is an undulating number in base 16.
1766 is strictly pandigital in base 5.
It is a Curzon number.
It is a plaindrome in base 8 and base 11.
It is a congruent number.
It is an unprimeable number.
1766 is an untouchable number, because it is not equal to the sum of proper divisors of any number.
21766 is an apocalyptic number.
1766 is an equidigital number, since it uses as much as digits as its factorization.
1766 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 885.
The square root of 1766 is about 42.0238027789. The cubic root of 1766 is about 12.0873259365.
The spelling of 1766 in words is "one thousand, seven hundred sixty-six".