91073484 has 72 divisors (see below), whose sum is σ = 244404160. Its totient is φ = 29638224.

The previous prime is 91073467. The next prime is 91073497. The reversal of 91073484 is 48437019.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40707 + ... + 42885.

Almost surely, 2^91073484 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 91073484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122202080).

91073484 is an abundant number, since it is smaller than the sum of its proper divisors (153330676).

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

91073484 is a wasteful number, since it uses less digits than its factorization.

91073484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2241 (or 2227 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 91073484 is about 9543.2428450711. The cubic root of 91073484 is about 449.9151840149.

The spelling of 91073484 in words is "ninety-one million, seventy-three thousand, four hundred eighty-four".