3839

3839 = 11 x 349.

3839 is 120210012 in base 3, the concatenation of three permutations of the digits 0, 1, 2.

3839 is the sum of 11 distinct powers of 2 (A038462).

3839 is the difference between two double factorials (A111300).

3839 is the concatenation of two consecutive numbers (A001704 and A127421).

3839 divides 67²⁹ - 1.

3839 is a number that cannot be written as a sum of three squares.

Source: OEIS