658

Number
$658$ (six hundred and fifty-eight) is:
 * $2 \times 7 \times 47$


 * The $53$rd untouchable number after $2$, $5$, $52$, $88$, $96$, $120$, $124$, $\ldots$, $530$, $540$, $552$, $556$, $562$, $576$, $584$, $612$, $624$, $626$, $628$