Measurements of properties of the Higgs boson SM(125) in the $\mathrm{H}\rightarrow\gamma\gamma$ decay channel are reported. The analysis uses the data collected by the CMS experiment in proton-proton collisions during the 2016 LHC running period. The data sample corresponds to an integrated luminosity of 35.9\,\text{fb}^\text{-1} at {\sqrt{s}=13\,\text{Te}\hspace{-.08em}\text{V}}. The measured signal strength relative to the standard model prediction is ${1.16^{+0.15}_{-0.14}=1.16\ ^{+0.11}_{-0.10}\text{(stat.)}\ ^{+0.09}_{-0.08}\text{(syst.)}\ ^{+0.06}_{-0.05}\text{(theo.)}}$. Signal strengths associated with the different Higgs boson production mechanisms, coupling modifiers to bosons and fermions, and effective couplings to photons and gluons are also measured.

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