881

881 is a prime number.

881 has a representation as the sum of two squares: 16² + 25².

881 and 883 form a twin prime pair.

881 is the hypotenuse of a primitive Pythagorean triple: 881² = 369² + 800².

881 is the largest three-digit prime of any form ABC such that AB + C, A + BC, and A + B + C are prime: 88 + 1 = 89, 8 + 81 = 89, and 8 + 8 + 1 = 17.

881 is a 2007 Singaporean musical-comedy-drama film written and directed by Royston Tan.

Source: Prime Curios!