714

Number
$714$ (seven hundred and fourteen) is:
 * $2 \times 3 \times 7 \times 17$


 * The $21$st integer $n$ after $1$, $3$, $15$, $30$, $35$, $56$, $\ldots$, $210$, $248$, $264$, $357$, $420$, $570$, $616$, $630$ with the property that $\tau \left({n}\right) \mathrel \backslash \phi \left({n}\right) \mathrel \backslash \sigma\left({n}\right)$:
 * $\tau \left({714}\right) = 16$, $\phi \left({714}\right) = 192$, $\sigma \left({714}\right) = 1728$