889244591 has 4 divisors (see below), whose sum is σ = 889625184. Its totient is φ = 888864000.

The previous prime is 889244549. The next prime is 889244597. The reversal of 889244591 is 195442988.

889244591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 889244591 - 2¹⁸ = 888982447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889244597) 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, 186770 + ... + 191471.

It is an arithmetic number, because the mean of its divisors is an integer number (222406296).

Almost surely, 2^889244591 is an apocalyptic number.

889244591 is a deficient number, since it is larger than the sum of its proper divisors (380593).

889244591 is a wasteful number, since it uses less digits than its factorization.

889244591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380592.

The product of its digits is 829440, while the sum is 50.

The square root of 889244591 is about 29820.2044090915. The cubic root of 889244591 is about 961.6279492389.

The spelling of 889244591 in words is "eight hundred eighty-nine million, two hundred forty-four thousand, five hundred ninety-one".