28282803 has 4 divisors (see below), whose sum is σ = 37710408. Its totient is φ = 18855200.

The previous prime is 28282741. The next prime is 28282817. The reversal of 28282803 is 30828282.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28282803 - 2⁶ = 28282739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28282823) 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 3 ways as a sum of consecutive naturals, for example, 4713798 + ... + 4713803.

It is an arithmetic number, because the mean of its divisors is an integer number (9427602).

Almost surely, 2^28282803 is an apocalyptic number.

28282803 is a deficient number, since it is larger than the sum of its proper divisors (9427605).

28282803 is an equidigital number, since it uses as much as digits as its factorization.

28282803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427604.

The product of its (nonzero) digits is 12288, while the sum is 33.

The square root of 28282803 is about 5318.1578577549. The cubic root of 28282803 is about 304.6778036257.

The spelling of 28282803 in words is "twenty-eight million, two hundred eighty-two thousand, eight hundred three".