28473851 has 6 divisors (see below), whose sum is σ = 33122700. Its totient is φ = 24406116.

The previous prime is 28473833. The next prime is 28473889. The reversal of 28473851 is 15837482.

It is not a de Polignac number, because 28473851 - 2⁶ = 28473787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28473811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 290501 + ... + 290598.

It is an arithmetic number, because the mean of its divisors is an integer number (5520450).

Almost surely, 2^28473851 is an apocalyptic number.

28473851 is a deficient number, since it is larger than the sum of its proper divisors (4648849).

28473851 is an equidigital number, since it uses as much as digits as its factorization.

28473851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581113 (or 581106 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 28473851 is about 5336.0894857564. The cubic root of 28473851 is about 305.3622891894.

The spelling of 28473851 in words is "twenty-eight million, four hundred seventy-three thousand, eight hundred fifty-one".