91068984 has 48 divisors (see below), whose sum is σ = 248971320. Its totient is φ = 30070080.

The previous prime is 91068959. The next prime is 91069001. The reversal of 91068984 is 48986019.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1794 + ... + 13614.

Almost surely, 2^91068984 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91068984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124485660).

91068984 is an abundant number, since it is smaller than the sum of its proper divisors (157902336).

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

91068984 is a wasteful number, since it uses less digits than its factorization.

91068984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11940 (or 11933 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 91068984 is about 9543.0070732448. The cubic root of 91068984 is about 449.9077736923.

The spelling of 91068984 in words is "ninety-one million, sixty-eight thousand, nine hundred eighty-four".