91363328 has 48 divisors (see below), whose sum is σ = 208812240. Its totient is φ = 39149568.

The previous prime is 91363313. The next prime is 91363331. The reversal of 91363328 is 82336319.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11150 + ... + 17522.

It is an arithmetic number, because the mean of its divisors is an integer number (4350255).

Almost surely, 2^91363328 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 91363328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104406120).

91363328 is an abundant number, since it is smaller than the sum of its proper divisors (117448912).

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

91363328 is an equidigital number, since it uses as much as digits as its factorization.

91363328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6402 (or 6382 counting only the distinct ones).

The product of its digits is 23328, while the sum is 35.

The square root of 91363328 is about 9558.4166052752. The cubic root of 91363328 is about 450.3919679462.

The spelling of 91363328 in words is "ninety-one million, three hundred sixty-three thousand, three hundred twenty-eight".