91882530 has 48 divisors (see below), whose sum is σ = 241937280. Its totient is φ = 24189984.

The previous prime is 91882519. The next prime is 91882559. The reversal of 91882530 is 3528819.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 649 + ... + 13571.

It is an arithmetic number, because the mean of its divisors is an integer number (5040360).

Almost surely, 2^91882530 is an apocalyptic number.

91882530 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 91882530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (120968640).

91882530 is an abundant number, since it is smaller than the sum of its proper divisors (150054750).

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

91882530 is a wasteful number, since it uses less digits than its factorization.

91882530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13015 (or 13012 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 91882530 is about 9585.5375436123. The cubic root of 91882530 is about 451.2435234630.

The spelling of 91882530 in words is "ninety-one million, eight hundred eighty-two thousand, five hundred thirty".