91108248 has 96 divisors (see below), whose sum is σ = 289085760. Its totient is φ = 23661120.

The previous prime is 91108247. The next prime is 91108289. The reversal of 91108248 is 84280119.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91108243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9415 + ... + 16457.

It is an arithmetic number, because the mean of its divisors is an integer number (3011310).

Almost surely, 2^91108248 is an apocalyptic number.

91108248 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91108248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (144542880).

91108248 is an abundant number, since it is smaller than the sum of its proper divisors (197977512).

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

91108248 is a wasteful number, since it uses less digits than its factorization.

91108248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7077 (or 7066 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 91108248 is about 9545.0640647405. The cubic root of 91108248 is about 449.9724230014.

The spelling of 91108248 in words is "ninety-one million, one hundred eight thousand, two hundred forty-eight".