846

Number
$846$ (eight hundred and forty-six) is:


 * $2 \times 3^2 \times 47$


 * The $4$th integer after $428$, $573$, $727$ whose square has a decimal representation consisting of the concatenation of $2$ consecutive increasing integers:
 * $846^2 = 715 \, 716$


 * The $5$th integer after $91$, $428$, $573$, $727$ whose square has a decimal representation consisting of the concatenation of $2$ consecutive integers:
 * $846^2 = 715 \, 716$