\citetitle like command for arbitrary field with biblatex/biber

Question

Can I print the string of an arbitrary field with biblatex/biber?

MWE below

\documentclass{article}
\begin{filecontents}{ref.bib}
  @book{test,
    author    = {J. Doe},
    title     = {Book of something}
    number    = {123}
  }
\end{filecontents}
\usepackage[backend=biber]{biblatex}
\addbibresource{ref.bib}
\begin{document}
The author of \cite{test} is \citeauthor{test},
  the number is \citenumber{test} \citenum{test}  % don't work
I would love a command that works for any field like so \citefield{number}{test}
\printbibliography
\end{document}