91480 has 16 divisors (see below), whose sum is σ = 205920. Its totient is φ = 36576.

The previous prime is 91463. The next prime is 91493. The reversal of 91480 is 8419.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1104 + ... + 1183.

It is an arithmetic number, because the mean of its divisors is an integer number (12870).

2⁹¹⁴⁸⁰ is an apocalyptic number.

It is an amenable number.

91480 is an abundant number, since it is smaller than the sum of its proper divisors (114440).

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

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102960).

91480 is a wasteful number, since it uses less digits than its factorization.

91480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298 (or 2294 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 91480 is about 302.4566084581. The cubic root of 91480 is about 45.0583604936.

Adding to 91480 its reverse (8419), we get a palindrome (99899).

The spelling of 91480 in words is "ninety-one thousand, four hundred eighty".