1873

Number
$1873$ (one thousand, eight hundred and seventy-three) is:


 * The $287$th prime number


 * The $10$th prime $p$ such that $p \# - 1$, where $p \#$ denotes primorial (product of all primes up to $p$) of $p$, is prime:
 * $3$, $5$, $11$, $13$, $41$, $89$, $317$, $337$, $991$, $1873$


 * The $2$nd of the $57$th pair of twin primes:
 * $1873 - 1871 = 2$