91560546 has 96 divisors (see below), whose sum is σ = 255430656. Its totient is φ = 23004000.

The previous prime is 91560517. The next prime is 91560571. The reversal of 91560546 is 64506519.

91560546 is a `hidden beast` number, since 9 + 1 + 5 + 605 + 46 = 666.

91560546 is nontrivially palindromic in base 5.

It is a self number, because there is not a number n which added to its sum of digits gives 91560546.

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 47 ways as a sum of consecutive naturals, for example, 41901 + ... + 44031.

It is an arithmetic number, because the mean of its divisors is an integer number (2660736).

Almost surely, 2^91560546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91560546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127715328).

91560546 is an abundant number, since it is smaller than the sum of its proper divisors (163870110).

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

91560546 is a wasteful number, since it uses less digits than its factorization.

91560546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188 (or 2185 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 91560546 is about 9568.7275016065. The cubic root of 91560546 is about 450.7158089168.

The spelling of 91560546 in words is "ninety-one million, five hundred sixty thousand, five hundred forty-six".