91559468 has 72 divisors (see below), whose sum is σ = 216437760. Its totient is φ = 32909760.

The previous prime is 91559449. The next prime is 91559471. The reversal of 91559468 is 86495519.

It is a happy number.

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 23 ways as a sum of consecutive naturals, for example, 51173 + ... + 52931.

It is an arithmetic number, because the mean of its divisors is an integer number (3006080).

Almost surely, 2^91559468 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 91559468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108218880).

91559468 is an abundant number, since it is smaller than the sum of its proper divisors (124878292).

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

91559468 is a wasteful number, since it uses less digits than its factorization.

91559468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1807 (or 1792 counting only the distinct ones).

The product of its digits is 388800, while the sum is 47.

The square root of 91559468 is about 9568.6711721116. The cubic root of 91559468 is about 450.7140400562.

The spelling of 91559468 in words is "ninety-one million, five hundred fifty-nine thousand, four hundred sixty-eight".