Code point
U+3246
Glyph appearance depends on your fonts.
U+3246
So<circle> 6587U+3246 CIRCLED IDEOGRAPH SCHOOL is a Unicode 16.0.0 character in the Other Symbol category. It belongs to the Enclosed CJK Letters and Months block.
Choose the representation you need, then copy its value.
U+3246
12870
㉆
㉆
E3 89 86
3246
00003246
%E3%89%86
\u3246
\u3246
\u3246
\3246