900002

Appears in sequences

• Numbers k such that k*(k+7) is a palindrome.at n=19A028564
• Numbers n such that n.s.rev(n) is palindromic and prime, where '.' represents concatenation, rev(n) is the reversal of n and s is the sum of n and rev(n). Or, n such that A084998(n) is prime.at n=4A093649