91883376 has 80 divisors (see below), whose sum is σ = 284044320. Its totient is φ = 28270080.

The previous prime is 91883369. The next prime is 91883377. The reversal of 91883376 is 67338819.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91883377) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2565 + ... + 13796.

It is an arithmetic number, because the mean of its divisors is an integer number (3550554).

Almost surely, 2^91883376 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 91883376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142022160).

91883376 is an abundant number, since it is smaller than the sum of its proper divisors (192160944).

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

91883376 is a wasteful number, since it uses less digits than its factorization.

91883376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16391 (or 16379 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 91883376 is about 9585.5816724912. The cubic root of 91883376 is about 451.2449083866.

The spelling of 91883376 in words is "ninety-one million, eight hundred eighty-three thousand, three hundred seventy-six".