377

377 = 13 x 29.

377 has two representations as a sum of two squares: 377 = 4² + 19² = 11² + 16².

377 is the fourteenth Fibonacci number. It is the largest known Fibonacci number whose digits are all prime.

377 is the hypotenuse of two primitive Pythagorean triples: 377² = 135² + 352² = 152² + 345².

377 is the sum of the squares of the first six primes: 377 = 2² + 3² + 5² + 7² + 11² + 13².

The Aero Spacelines B-377 SG Super Guppy is a four-engine oversize-cargo freighter aircraft.

Source: Prime Curios!