This number is a prime.
π(386429) = (3+8+6+4+2+9)+(3+8+6+4+2+9)^3. It is the smallest prime (emirp) with this property. [Bajpai]
π(386429) = (3+8+6+4+2+9)+(3+8+6+4+2+9)^3. It is the smallest prime (emirp) with this property. [Bajpai]