91411568 has 20 divisors (see below), whose sum is σ = 184811088. Its totient is φ = 43718400.

The previous prime is 91411561. The next prime is 91411583. The reversal of 91411568 is 86511419.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91411561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123833 + ... + 124568.

Almost surely, 2^91411568 is an apocalyptic number.

It is an amenable number.

91411568 is an abundant number, since it is smaller than the sum of its proper divisors (93399520).

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

91411568 is a wasteful number, since it uses less digits than its factorization.

91411568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248432 (or 248426 counting only the distinct ones).

The product of its digits is 8640, while the sum is 35.

The square root of 91411568 is about 9560.9397027698. The cubic root of 91411568 is about 450.4712232527.

The spelling of 91411568 in words is "ninety-one million, four hundred eleven thousand, five hundred sixty-eight".