This number is a composite.
387344 = 2 x 2 x 2 x 2 x 43 x 563 and 32 + 82 + 72 + 32 + 443 + 4563 is prime. [De Geest]
387344 = 2 x 2 x 2 x 2 x 43 x 563 and 32 + 82 + 72 + 32 + 443 + 4563 is prime. [De Geest]