8888989domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that contain digits 8 and 9 only.at n=11A020472Smallest n-digit prime containing only the digits 8 and 9, or 0 if no such prime exists.at n=6A036951Primes with digit sum = 58.at n=23A106785Prime numbersat n=595541