91916 has 12 divisors (see below), whose sum is σ = 175560.
Its totient is φ = 41760.
The previous prime is 91909. The next prime is 91921. The reversal of 91916 is 61919.
It is an unprimeable number.
It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1001 + ... + 1088.
It is an arithmetic number, because the mean of its divisors is an integer number (14630).
291916 is an apocalyptic number.
It is an amenable number.
91916 is a deficient number, since it is larger than the sum of its proper divisors (83644).
91916 is a wasteful number, since it uses less digits than its factorization.
91916 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2104 (or 2102 counting only the distinct ones).
The product of its digits is 486, while the sum is 26.
The square root of 91916 is about 303.1765162410.
The cubic root of 91916 is about 45.1298308224.
The spelling of 91916 in words is "ninety-one thousand, nine hundred sixteen".