This character is a Decimal Number and is mainly used in the Bengali script. It is also used in the scripts Chakma, Syloti Nagri. The codepoint has the decimal value 9.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it is written from left to right. When changing direction it is not mirrored. This number joins with other adjacent letters and numbers to form a word. U+09EF forms a number with similar characters, which prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
9 (nine) is the natural number following 8 and preceding 10.
Representations
System
Representation (click value to copy)
Nº
2543
UTF-8
E0 A7 AF
UTF-16
09 EF
UTF-32
00 00 09 EF
URL-Quoted
%E0%A7%AF
HTML hex reference
৯
Wrong windows-1252 Mojibake
৯
Encoding: GB18030 (hex bytes)
81 31 E4 37
Adobe Glyph List
ninebengali
RFC 5137
\u'09EF'
Bash and Zsh inside echo -e
\u09EF
C and C++
\u09EF
C#
\u09EF
CSS
\0009EF
Excel
=UNICHAR(2543)
Go
\u09EF
JavaScript
\u09EF
Modern JavaScript since ES6
\u{9ef}
JSON
\u09EF
Java
\u09EF
Lua
\u{9EF}
Matlab
char(2543)
Perl
"\x{9EF}"
PHP
\u{9ef}
PostgreSQL
U&'\09EF'
PowerShell
`u{9EF}
Python
\u09EF
Ruby
\u{9ef}
Rust
\u{9ef}
Click the star button next to each label to set this representation as favorite or remove it from the favorites. Favorites will be shown initially. (Favorites are stored locally on your computer and never sent over the internet.)