91449413 has 8 divisors (see below), whose sum is σ = 105013920. Its totient is φ = 78760080.

The previous prime is 91449361. The next prime is 91449419. The reversal of 91449413 is 31494419.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91449413 - 2⁸ = 91449157 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91449419) 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 7 ways as a sum of consecutive naturals, for example, 218570 + ... + 218987.

It is an arithmetic number, because the mean of its divisors is an integer number (13126740).

Almost surely, 2^91449413 is an apocalyptic number.

It is an amenable number.

91449413 is a deficient number, since it is larger than the sum of its proper divisors (13564507).

91449413 is a wasteful number, since it uses less digits than its factorization.

91449413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 437587.

The product of its digits is 15552, while the sum is 35.

The square root of 91449413 is about 9562.9186444307. The cubic root of 91449413 is about 450.5333807079.

The spelling of 91449413 in words is "ninety-one million, four hundred forty-nine thousand, four hundred thirteen".