97779

Appears in sequences

• a(n) has two outer digits 9 and n inner digits 7.at n=3A108904
• Numbers k such that 10^9999 + k is a (gigantic) prime.at n=4A142587
• Zeroless numbers n such that n and n - (product of digits of n) are both palindromes.at n=44A229761
• a(1)=1; a(n+1) is the smallest palindrome not already in the sequence such that the product of a(n+1) and a(n) is also a palindrome.at n=40A332661