This character is a Uppercase Letter and is mainly used in the Latin script. Its lowercase variant is Latin Small Letter Is.
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. The word that U+A76C forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
Scribal abbreviations, or sigla (singular: siglum), are abbreviations used by ancient and medieval scribes writing in various languages, including Latin, Greek, Old English and Old Norse.
In modern manuscript editing (substantive and mechanical) sigla are the symbols used to indicate the source manuscript (e.g. variations in text between different such manuscripts).
Representations
System
Representation (click value to copy)
Nº
42860
UTF-8
EA 9D AC
UTF-16
A7 6C
UTF-32
00 00 A7 6C
URL-Quoted
%EA%9D%AC
HTML hex reference
Ꝭ
Wrong windows-1252 Mojibake
ê¬
Encoding: GB18030 (hex bytes)
82 36 D8 33
RFC 5137
\u'A76C'
Bash and Zsh inside echo -e
\uA76C
C and C++
\uA76C
C#
\uA76C
CSS
\00A76C
Excel
=UNICHAR(42860)
Go
\uA76C
JavaScript
\uA76C
Modern JavaScript since ES6
\u{a76c}
JSON
\uA76C
Java
\uA76C
Lua
\u{A76C}
Matlab
char(42860)
Perl
"\x{A76C}"
PHP
\u{a76c}
PostgreSQL
U&'\A76C'
PowerShell
`u{A76C}
Python
\uA76C
Ruby
\u{a76c}
Rust
\u{a76c}
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