9461

This number is a prime.

+ The largest prime whose the reversal is a 2-brilliant number equal to the product of two double-digit emirps, i.e., R(9461)=1649=17*97. [Loungrides]

+ π times 9461 rounded to the nearest integer is a prime number (29723). Note that π(9461)=1171, yet another prime! [Keith]

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