91063984 has 40 divisors (see below), whose sum is σ = 193090320. Its totient is φ = 41260800.

The previous prime is 91063967. The next prime is 91063991. The reversal of 91063984 is 48936019.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73482 + ... + 74710.

It is an arithmetic number, because the mean of its divisors is an integer number (4827258).

Almost surely, 2^91063984 is an apocalyptic number.

It is an amenable number.

91063984 is an abundant number, since it is smaller than the sum of its proper divisors (102026336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91063984 is a wasteful number, since it uses less digits than its factorization.

91063984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1669 (or 1663 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 91063984 is about 9542.7450977169. The cubic root of 91063984 is about 449.8995397143.

The spelling of 91063984 in words is "ninety-one million, sixty-three thousand, nine hundred eighty-four".