91320116 has 12 divisors (see below), whose sum is σ = 160006560. Its totient is φ = 45603960.

The previous prime is 91320083. The next prime is 91320121. The reversal of 91320116 is 61102319.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 91320091 and 91320100.

It is a congruent number.

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, 10250 + ... + 16961.

It is an arithmetic number, because the mean of its divisors is an integer number (13333880).

Almost surely, 2^91320116 is an apocalyptic number.

It is an amenable number.

91320116 is a deficient number, since it is larger than the sum of its proper divisors (68686444).

91320116 is a wasteful number, since it uses less digits than its factorization.

91320116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28054 (or 28052 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 23.

The square root of 91320116 is about 9556.1559217083. The cubic root of 91320116 is about 450.3209496382.

The spelling of 91320116 in words is "ninety-one million, three hundred twenty thousand, one hundred sixteen".