91497896 has 48 divisors (see below), whose sum is σ = 204471540. Its totient is φ = 38250240.

The previous prime is 91497877. The next prime is 91497899. The reversal of 91497896 is 69879419.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 70795396 + 20702500 = 8414^2 + 4550^2 .

It is not an unprimeable number, because it can be changed into a prime (91497899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13226 + ... + 18918.

Almost surely, 2^91497896 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 91497896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102235770).

91497896 is an abundant number, since it is smaller than the sum of its proper divisors (112973644).

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

91497896 is a wasteful number, since it uses less digits than its factorization.

91497896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5754 (or 5743 counting only the distinct ones).

The product of its digits is 979776, while the sum is 53.

The square root of 91497896 is about 9565.4532563805. The cubic root of 91497896 is about 450.6129851951.

The spelling of 91497896 in words is "ninety-one million, four hundred ninety-seven thousand, eight hundred ninety-six".