986143414027351997

This number is a prime.

                                                         98614341 4027351997

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The smallest prime that is the sum of the cubes of first n Carmichael numbers (561^3+1105^3+1729^3+...+530881^3+552721^3). It is also expressible as (967033541^2+225808646^2). [Bajpai]