Electrophotographic photoreceptor, process cartridge, and image forming apparatus

An electrophotographic photoreceptor comprising:

• a conductive substrate;
• and
• a photosensitive layer provided on the conductive substrate,
• wherein an outermost surface layer includes a cured film of a composition containing inorganic particles having polymerizable groups and a reactive compound represented by the following formula (I-c):
• wherein Arc1 to Arc4 each independently represent a substituted or unsubstituted aryl group;
• Arc5 represents a substituted or unsubstituted aryl group, or a substituted or unsubstituted arylene group;
• Dc represents a group represented by the following formula (IA-c);
• cc1 to cc5 each independently represent an integer of 0 to 2;
• and ck represents 0 or 1;
• provided that a total number of Dc is from 1 to 8,
• wherein Lc represents a divalent linking group including one or more groups selected from the group consisting of:
• (i) —C(═O)—, (ii) —N(R)—, (iii) —S—, and (iv) a group formed by a combination of —C(═O)— with —O—, —N(R)—, or —S—;
• and R represents a hydrogen atom, an alkyl group, an aryl group, or an aralkyl group;
• wherein
• the inorganic particles having polymerizable groups are fumed silica particles having polymerizable groups.