3468667

This number is a prime.

3468667 = 2^10 + 3^9 + 5^8 + 7^7 + 11^6 + 13^5 + 17^4 + 19^3 + 23^2 + 29^1 is prime. The next prime of this form is sum(i=1..242, prime(i)^(243-i)) ~ 10^458. [Hasler]