28845843 has 8 divisors (see below), whose sum is σ = 41419728. Its totient is φ = 17751264.

The previous prime is 28845811. The next prime is 28845851. The reversal of 28845843 is 34854882.

It is a happy number.

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

It is not a de Polignac number, because 28845843 - 2⁵ = 28845811 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 28845795 and 28845804.

It is not an unprimeable number, because it can be changed into a prime (28845853) 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, 369780 + ... + 369857.

It is an arithmetic number, because the mean of its divisors is an integer number (5177466).

Almost surely, 2^28845843 is an apocalyptic number.

28845843 is a deficient number, since it is larger than the sum of its proper divisors (12573885).

28845843 is a wasteful number, since it uses less digits than its factorization.

28845843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739653.

The product of its digits is 245760, while the sum is 42.

The square root of 28845843 is about 5370.8326170157. The cubic root of 28845843 is about 306.6863252731.

The spelling of 28845843 in words is "twenty-eight million, eight hundred forty-five thousand, eight hundred forty-three".