449

Number
$449$ (four hundred and forty-nine) is:


 * The $87$th prime number


 * The smaller of the $5$th pair of primes whose prime gap is $8$:
 * $457 - 449 = 8$


 * The $11$th minimal prime base $10$ after $2$, $3$, $5$, $7$, $11$, $19$, $41$, $61$, $89$, $409$


 * The $12$th Proth prime after $3$, $5$, $13$, $17$, $41$, $97$, $113$, $193$, $241$, $257$, $353$:
 * $449 = 7 \times 2^6 + 1$