87 (number)

87 was a number.

's time brain thought that 87K to the power of 19E correlated with 52 to the power of 6.4 equals 29V. The Seventh Doctor corrected it to 39. (TV: Time and the Rani)

Petronella Osgood counted 87 Cybermen rising from St Paul's Cathedral. corrected her, stating that the total number was 91. (TV: Death in Heaven)