וַיְהִ֛י הַמֶּ֥כֶס לַֽיהוָ֖ה מִן־הַצֹּ֑אן שֵׁ֥שׁ מֵא֖וֹת חָמֵ֥שׁ וְשִׁבְעִֽים׃
And the LORD’S tribute of the sheep was six hundred and threescore and fifteen.
Read kabbalistic (mystical) interpretation of Numbers 31:37: and classical mystical sources.