91854528 has 56 divisors (see below), whose sum is σ = 245010432. Its totient is φ = 30369024.

The previous prime is 91854517. The next prime is 91854541. The reversal of 91854528 is 82545819.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 91854528.

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, 22501 + ... + 26267.

Almost surely, 2^91854528 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 91854528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122505216).

91854528 is an abundant number, since it is smaller than the sum of its proper divisors (153155904).

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

91854528 is a wasteful number, since it uses less digits than its factorization.

91854528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909 (or 3899 counting only the distinct ones).

The product of its digits is 115200, while the sum is 42.

The square root of 91854528 is about 9584.0767943501. The cubic root of 91854528 is about 451.1976786763.

The spelling of 91854528 in words is "ninety-one million, eight hundred fifty-four thousand, five hundred twenty-eight".