Electrophotographic photosensitive member, method of producing electrophotographic photosensitive member, process cartridge, and electrophotographic apparatus

An electrophotographic photosensitive member, comprising:

• a support,
• a photosensitive layer formed on the support,
• wherein the electrophotographic photosensitive member comprises a surface layer comprising a polymer obtainable by the polymerization of a compound with one or more chain-polymerizable functional groups,
• wherein the compound with one or more chain-polymerizable functional groups is a compound represented by the following formula (1);
• and
• wherein, in the formula (1),
• Ar1 to Ar3 each independently represents an unsubstituted or substituted phenylene group,
• M1 to M3 each independently represents a group represented by the above formula (2M), a group represented by the above formula (3M), or a group represented by the above formula (4M),
• at least one of the M1 to M3 is the group represented by the formula (3M), and
• a substituent group of the substituted phenylene group is each independently an alkyl group having 1 to 4 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, or a halogen atom.