91014080 has 56 divisors (see below), whose sum is σ = 222613728. Its totient is φ = 35417088.

The previous prime is 91014071. The next prime is 91014103. The reversal of 91014080 is 8041019.

It is a congruent number.

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, 7997 + ... + 15683.

Almost surely, 2^91014080 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 91014080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111306864).

91014080 is an abundant number, since it is smaller than the sum of its proper divisors (131599648).

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

91014080 is a wasteful number, since it uses less digits than its factorization.

91014080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7741 (or 7731 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 91014080 is about 9540.1299781502. The cubic root of 91014080 is about 449.8173415054.

Adding to 91014080 its reverse (8041019), we get a palindrome (99055099).

The spelling of 91014080 in words is "ninety-one million, fourteen thousand, eighty".