979797979

Properties

Appears in sequences

• Undulating palindromic primes of form ABABAB...BA with alternating prime and nonprime digits.at n=17A039944
• Erroneous version of A032758.at n=33A045921
• Undulating palindromic primes: numbers that are prime, palindromic in base 10, and the digits alternate: ababab... with a != b.at n=30A059758
• Smallest prime of the form concatenation of prime(n) with itself followed by a 9, or 0 if no such prime exists.at n=24A092995
• Greatest n-digit prime in which every two-digit string is also a prime.at n=8A242377
• Prime numbersat n=49871833