28500843 has 8 divisors (see below), whose sum is σ = 43429888. Its totient is φ = 16286184.

The previous prime is 28500833. The next prime is 28500851. The reversal of 28500843 is 34800582.

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

It is not a de Polignac number, because 28500843 - 2⁴ = 28500827 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 28500843.

It is not an unprimeable number, because it can be changed into a prime (28500833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 678571 + ... + 678612.

It is an arithmetic number, because the mean of its divisors is an integer number (5428736).

Almost surely, 2^28500843 is an apocalyptic number.

28500843 is a deficient number, since it is larger than the sum of its proper divisors (14929045).

28500843 is a wasteful number, since it uses less digits than its factorization.

28500843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357193.

The product of its (nonzero) digits is 7680, while the sum is 30.

The square root of 28500843 is about 5338.6180796157. The cubic root of 28500843 is about 305.4587488712.

The spelling of 28500843 in words is "twenty-eight million, five hundred thousand, eight hundred forty-three".