28842589 has 8 divisors (see below), whose sum is σ = 30602240. Its totient is φ = 27107136.

The previous prime is 28842587. The next prime is 28842601. The reversal of 28842589 is 98524882.

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 28842589 - 2¹ = 28842587 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 (28842587) 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, 3564 + ... + 8389.

It is an arithmetic number, because the mean of its divisors is an integer number (3825280).

Almost surely, 2^28842589 is an apocalyptic number.

It is an amenable number.

28842589 is a deficient number, since it is larger than the sum of its proper divisors (1759651).

28842589 is a wasteful number, since it uses less digits than its factorization.

28842589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12099.

The product of its digits is 368640, while the sum is 46.

The square root of 28842589 is about 5370.5296759258. The cubic root of 28842589 is about 306.6747927641.

The spelling of 28842589 in words is "twenty-eight million, eight hundred forty-two thousand, five hundred eighty-nine".