999979

Properties

Appears in sequences

• Primes that contain digits 7 and 9 only.at n=20A020471
• Largest n-digit prime with all odd digits.at n=5A068694
• a(n) = largest prime using least number of possible digits with a digit sum n, or 0 if no such number exists. E.g., if n > 9 and there are no two-digit primes with a given digit sum n then three-digit numbers are explored and so on.at n=51A088115
• Near-repdigit primes with 9 as repeated digit.at n=31A105975
• Primes with digit sum = 52.at n=2A106781
• Largest n-digit prime with the most digits equal to 9.at n=5A178007
• Greatest n-digit prime having at least n-1 identical digits.at n=5A241206
• Moving the rightmost digit of a number to place it furthest to the left adds 18 to the number.at n=41A363823
• Prime numbersat n=78497