This number is a prime.
The eleven ships of The First Fleet sailed from Great Britain on May 13, 1787 to establish the first European colony in New South Wales, Australia. [Malinin]
The smallest prime obtained by concatenating a multidigit prime, (17), and the sum and product of its own digits. [Loungrides]
One solar mass has a rest mass energy of 1787 foe. [Weinburg]