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 8.
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+09EE forms a number with similar characters, which prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
8 (eight) is the natural number following 7 and preceding 9.
Representations
System
Representation (click value to copy)
Nº
2542
UTF-8
E0 A7 AE
UTF-16
09 EE
UTF-32
00 00 09 EE
URL-Quoted
%E0%A7%AE
HTML hex reference
৮
Wrong windows-1252 Mojibake
৮
Encoding: GB18030 (hex bytes)
81 31 E4 36
Adobe Glyph List
eightbengali
RFC 5137
\u'09EE'
Bash and Zsh inside echo -e
\u09EE
C and C++
\u09EE
C#
\u09EE
CSS
\0009EE
Excel
=UNICHAR(2542)
Go
\u09EE
JavaScript
\u09EE
Modern JavaScript since ES6
\u{9ee}
JSON
\u09EE
Java
\u09EE
Lua
\u{9EE}
Matlab
char(2542)
Perl
"\x{9EE}"
PHP
\u{9ee}
PostgreSQL
U&'\09EE'
PowerShell
`u{9EE}
Python
\u09EE
Ruby
\u{9ee}
Rust
\u{9ee}
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