389

Number
$389$ (three hundred and eighty-nine) is:


 * The $77$th prime number


 * The $20$th emirp after $13$, $17$, $31$, $37$, $71$, $73$, $79$, $97$, $107$, $113$, $149$, $157$, $167$, $179$, $199$, $311$, $337$, $347$, $359$


 * The smaller of the $3$rd pair of primes whose prime gap is $8$:
 * $397 - 389 = 8$