This character is a Other Number and is commonly used, that is, in no specific script. The codepoint represents the digit6.
The glyph is a subscript version of the glyph Digit Six. It has no designated width in East Asian texts. In bidirectional text it is written as European number from left to right. When changing direction it is not mirrored. The word that U+2086 forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
6 (six) is the natural number following 5 and preceding 7. It is a composite number and the smallest perfect number.
Representations
System
Representation (click value to copy)
Nº
8326
UTF-8
E2 82 86
UTF-16
20 86
UTF-32
00 00 20 86
URL-Quoted
%E2%82%86
HTML hex reference
₆
Wrong windows-1252 Mojibake
₆
Encoding: GB18030 (hex bytes)
81 36 AF 34
AGL: Latin-4
six.inferior
AGL: Latin-5
six.inferior
Adobe Glyph List
sixinferior
digraph
6s
RFC 5137
\u'2086'
Bash and Zsh inside echo -e
\u2086
C and C++
\u2086
C#
\u2086
CSS
\002086
Excel
=UNICHAR(8326)
Go
\u2086
JavaScript
\u2086
Modern JavaScript since ES6
\u{2086}
JSON
\u2086
Java
\u2086
Lua
\u{2086}
Matlab
char(8326)
Perl
"\x{2086}"
PHP
\u{2086}
PostgreSQL
U&'\2086'
PowerShell
`u{2086}
Python
\u2086
Ruby
\u{2086}
Rust
\u{2086}
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