91448 has 32 divisors (see below), whose sum is σ = 207360. Its totient is φ = 36960.

The previous prime is 91433. The next prime is 91453. The reversal of 91448 is 84419.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 91448.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1253 + ... + 1323.

It is an arithmetic number, because the mean of its divisors is an integer number (6480).

2⁹¹⁴⁴⁸ 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 91448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103680).

91448 is an abundant number, since it is smaller than the sum of its proper divisors (115912).

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

91448 is a wasteful number, since it uses less digits than its factorization.

91448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107 (or 103 counting only the distinct ones).

The product of its digits is 1152, while the sum is 26.

The square root of 91448 is about 302.4037036810. The cubic root of 91448 is about 45.0531060274.

The spelling of 91448 in words is "ninety-one thousand, four hundred forty-eight".