28844443 has 8 divisors (see below), whose sum is σ = 30236976. Its totient is φ = 27484800.

The previous prime is 28844441. The next prime is 28844447. The reversal of 28844443 is 34444882.

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 28844443 - 2¹ = 28844441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28844441) 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, 6418 + ... + 9943.

It is an arithmetic number, because the mean of its divisors is an integer number (3779622).

Almost surely, 2^28844443 is an apocalyptic number.

28844443 is a deficient number, since it is larger than the sum of its proper divisors (1392533).

28844443 is a wasteful number, since it uses less digits than its factorization.

28844443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16445.

The product of its digits is 98304, while the sum is 37.

The square root of 28844443 is about 5370.7022818250. The cubic root of 28844443 is about 306.6813636361.

The spelling of 28844443 in words is "twenty-eight million, eight hundred forty-four thousand, four hundred forty-three".