91348312 has 32 divisors (see below), whose sum is σ = 188237520. Its totient is φ = 41213440.

The previous prime is 91348267. The next prime is 91348319. The reversal of 91348312 is 21384319.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91348319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8268 + ... + 15844.

Almost surely, 2^91348312 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 91348312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94118760).

91348312 is an abundant number, since it is smaller than the sum of its proper divisors (96889208).

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

91348312 is a wasteful number, since it uses less digits than its factorization.

91348312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7731 (or 7727 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 91348312 is about 9557.6310872517. The cubic root of 91348312 is about 450.3672919028.

The spelling of 91348312 in words is "ninety-one million, three hundred forty-eight thousand, three hundred twelve".