Properties of the Higgs boson are measured in the () decay channel. A data sample of proton-proton collisions at a center-of-mass energy of 13~\mathrm{TeV} is used, corresponding to an integrated luminosity of 35.9~\mathrm{fb}^{-1} recorded by the CMS detector at the LHC. The signal-strength modifier , defined as the production cross section of the Higgs boson times its branching fraction to four leptons relative to the standard model expectation, is measured to be at m_{\mathrm{H}}=125.09~\mathrm{GeV}. The signal-strength modifiers for the main Higgs boson production modes have also been constrained. The mass is measured to be m_{\mathrm{H}}=125.26 \pm 0.21~\mathrm{GeV} and the width is constrained using on-shell production to be \Gamma_{\mathrm{H}}<1.10~\mathrm{GeV}, at CL. The fiducial cross section is measured to be 2.90^{+0.48}_{-0.44}({\rm stat.})^{+0.27}_{-0.22}({\rm sys.})~{\mathrm{fb}}, which is compatible with the standard model prediction of 2.72\pm0.14~{\mathrm{fb}}. Differential cross sections as a function of the of the Higgs boson, the number of associated jets, and the of the leading associated jet are determined.