836

Number
$836$ (eight hundred and thirty-six) is:


 * $2^2 \times 11 \times 19$


 * The $2$nd weird number after $70$:
 * $\sigma \left({836}\right) - 836 = 844$: its aliquot parts are $1$, $2$, $4$, $11$, $19$, $22$, $38$, $44$, $76$, $209$, $418$, from which $836$ cannot be made.