709 is a prime number.
709 has a representation as a sum of two squares: 709 = 152 + 222.
709 is the hypotenuse of a primitive Pythagorean triple: 7092 = 2592 + 6602.
709 is the smallest prime of the form 59n + 1.
709 is the smallest prime whose cube is the sum of three prime cubes: 7093 = 1933 + 4613 + 6313.
709 is the number on General Esperanza's cargo plane in the movie Die Hard 2: Die Harder.
Source: Prime Curios!
