43691

This number is a prime.

+ The sixth Wagstaff prime. Each of the first 6 have a sum of digits that is prime. The next has a sum of digits equal to 28, which is "perfect."

(There are 2 curios for this number that have not yet been approved by an editor.)

Printed from the PrimePages <primes.utm.edu> © G. L. Honaker and Chris K. Caldwell