91075441 has 4 divisors (see below), whose sum is σ = 91730800. Its totient is φ = 90420084.

The previous prime is 91075429. The next prime is 91075459. The reversal of 91075441 is 14457019.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 91075441 - 2¹¹ = 91073393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91079441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 327471 + ... + 327748.

It is an arithmetic number, because the mean of its divisors is an integer number (22932700).

Almost surely, 2^91075441 is an apocalyptic number.

It is an amenable number.

91075441 is a deficient number, since it is larger than the sum of its proper divisors (655359).

91075441 is a wasteful number, since it uses less digits than its factorization.

91075441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 655358.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 91075441 is about 9543.3453778012. The cubic root of 91075441 is about 449.9184066057.

The spelling of 91075441 in words is "ninety-one million, seventy-five thousand, four hundred forty-one".