28843489 has 8 divisors (see below), whose sum is σ = 29157632. Its totient is φ = 28531440.

The previous prime is 28843481. The next prime is 28843517. The reversal of 28843489 is 98434882.

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 28843489 - 2³ = 28843481 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28843481) 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, 46747 + ... + 47359.

It is an arithmetic number, because the mean of its divisors is an integer number (3644704).

Almost surely, 2^28843489 is an apocalyptic number.

It is an amenable number.

28843489 is a deficient number, since it is larger than the sum of its proper divisors (314143).

28843489 is a wasteful number, since it uses less digits than its factorization.

28843489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1047.

The product of its digits is 442368, while the sum is 46.

The square root of 28843489 is about 5370.6134658901. The cubic root of 28843489 is about 306.6779825430.

The spelling of 28843489 in words is "twenty-eight million, eight hundred forty-three thousand, four hundred eighty-nine".