1487

Number
$1487$ (one thousand four hundred and eighty-seven) is:


 * The $236$th prime number


 * The $28$th of $29$ primes of the form $2 x^2 + 29$:
 * $2 \times 27^2 + 29 = 1487$


 * The $33$rd safe prime after $5$, $7$, $11$, $23$, $47$, $\ldots$, $839$, $863$, $887$, $983$, $1019$, $1187$, $1283$, $1307$, $1319$, $1367$, $1439$:
 * $1487 = 2 \times 743 + 1$


 * The smaller of the $50$th pair of twin primes:
 * $1489 - 1487 = 2$