4891589 has 4 divisors (see below), whose sum is σ = 4899360. Its totient is φ = 4883820.

The previous prime is 4891567. The next prime is 4891591. The reversal of 4891589 is 9851984.

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 4891589 - 2⁸ = 4891333 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 (4891519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2849 + ... + 4230.

It is an arithmetic number, because the mean of its divisors is an integer number (1224840).

Almost surely, 2^4891589 is an apocalyptic number.

It is an amenable number.

4891589 is a deficient number, since it is larger than the sum of its proper divisors (7771).

4891589 is an equidigital number, since it uses as much as digits as its factorization.

4891589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770.

The product of its digits is 103680, while the sum is 44.

The square root of 4891589 is about 2211.6936948863. The cubic root of 4891589 is about 169.7526853658.

The spelling of 4891589 in words is "four million, eight hundred ninety-one thousand, five hundred eighty-nine".