888989domain: NPropertiesPrimalityPrimeyesAppears in sequencesPrimes that contain digits 8 and 9 only.at n=7A020472Smallest n-digit prime containing only the digits 8 and 9, or 0 if no such prime exists.at n=5A036951Primes with digit sum = 50.at n=3A106780Primes having only {0, 8, 9} as digits.at n=29A385772Prime numbersat n=70486