28848689 has 8 divisors (see below), whose sum is σ = 29198400. Its totient is φ = 28501200.

The previous prime is 28848679. The next prime is 28848691. The reversal of 28848689 is 98684882.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28848689 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 28848689.

It is not an unprimeable number, because it can be changed into a prime (28848679) 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 7 ways as a sum of consecutive naturals, for example, 45404 + ... + 46034.

It is an arithmetic number, because the mean of its divisors is an integer number (3649800).

Almost surely, 2^28848689 is an apocalyptic number.

It is an amenable number.

28848689 is a deficient number, since it is larger than the sum of its proper divisors (349711).

28848689 is a wasteful number, since it uses less digits than its factorization.

28848689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111.

The product of its digits is 1769472, while the sum is 53.

The square root of 28848689 is about 5371.0975600896. The cubic root of 28848689 is about 306.6964110773.

The spelling of 28848689 in words is "twenty-eight million, eight hundred forty-eight thousand, six hundred eighty-nine".