387

Number
$387$ (three hundred and eighty-seven) is:


 * $3^2 \times 43$


 * The $22$nd inconsummate number after $62$, $63$, $65$, $75$, $\ldots$, $371$, $372$, $377$, $381$, $383$, $386$:
 * $\nexists n \in \Z_{>0}: n = 387 \map {\times s_{10} } n$


 * The $1$st of the $11$th pair of consecutive integers which both have $6$ divisors:
 * $\map {\sigma_0} {387} = \map {\sigma_0} {388} = 6$