8591050889 has 4 divisors (see below), whose sum is σ = 8591276100. Its totient is φ = 8590825680.

The previous prime is 8591050843. The next prime is 8591050901. The reversal of 8591050889 is 9880501958.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3106167289 + 5484883600 = 55733^2 + 74060^2 .

It is a cyclic number.

It is not a de Polignac number, because 8591050889 - 2¹⁶ = 8590985353 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 8591050889.

It is not an unprimeable number, because it can be changed into a prime (8591010889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39614 + ... + 136935.

It is an arithmetic number, because the mean of its divisors is an integer number (2147819025).

Almost surely, 2^8591050889 is an apocalyptic number.

It is an amenable number.

8591050889 is a deficient number, since it is larger than the sum of its proper divisors (225211).

8591050889 is a wasteful number, since it uses less digits than its factorization.

8591050889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225210.

The product of its (nonzero) digits is 1036800, while the sum is 53.

The square root of 8591050889 is about 92687.9220233143. The cubic root of 8591050889 is about 2048.0887114722.

The spelling of 8591050889 in words is "eight billion, five hundred ninety-one million, fifty thousand, eight hundred eighty-nine".