Investir belong to the 2nd
group. Investir is a common french verb.
Investir is conjugated the same way that verbs that end in : -ir
Investir is conjugated with auxiliary avoir
Investir verb is
direct transitive, intransitive.
French verb investir can be conjugated in the reflexive form: S'investir
verb is a direct transitive verb, so passive voice can be used.