598

Number
$598$ (five hundred and ninety-eight) is:
 * $2 \times 13 \times 23$


 * The $15$th number after $0$, $1$, $2$, $3$, $4$, $5$, $6$, $7$, $8$, $9$, $89$, $135$, $175$, $518$ which is the sum of the increasing powers of its digits taken in order:
 * $5^1 + 9^2 + 8^3 = 598$