91883862 has 64 divisors (see below), whose sum is σ = 238824960. Its totient is φ = 25637472.

The previous prime is 91883851. The next prime is 91883863. The reversal of 91883862 is 26838819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91883863) 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 31 ways as a sum of consecutive naturals, for example, 13428 + ... + 19080.

It is an arithmetic number, because the mean of its divisors is an integer number (3731640).

Almost surely, 2^91883862 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91883862, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (119412480).

91883862 is an abundant number, since it is smaller than the sum of its proper divisors (146941098).

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

91883862 is a wasteful number, since it uses less digits than its factorization.

91883862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714 (or 5708 counting only the distinct ones).

The product of its digits is 165888, while the sum is 45.

The square root of 91883862 is about 9585.6070230320. The cubic root of 91883862 is about 451.2457039771.

The spelling of 91883862 in words is "ninety-one million, eight hundred eighty-three thousand, eight hundred sixty-two".