Erdős problem 828Is it true that, for any a∈Za \in \mathbb{Z}, there are infinitely many nn such that ϕ(n)∣n+a\phi(n) | n + a?WorkspaceContinue locallyOpen sourceSign in to contributeOpen this exact Problem, source revision, and authority Repository in Workbench. This handoff does not clone, switch, upload, or execute anything.FilesErdős problem 8284 retained source recordsCanvaspublic previewSource#828→ResultNone→Checks0