28027203 has 8 divisors (see below), whose sum is σ = 39567888. Its totient is φ = 17585664.

The previous prime is 28027189. The next prime is 28027213. The reversal of 28027203 is 30272082.

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

It is not a de Polignac number, because 28027203 - 2⁴ = 28027187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28027213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 274726 + ... + 274827.

It is an arithmetic number, because the mean of its divisors is an integer number (4945986).

Almost surely, 2^28027203 is an apocalyptic number.

28027203 is a deficient number, since it is larger than the sum of its proper divisors (11540685).

28027203 is a wasteful number, since it uses less digits than its factorization.

28027203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 549573.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 28027203 is about 5294.0724400031. The cubic root of 28027203 is about 303.7572038462.

Adding to 28027203 its reverse (30272082), we get a palindrome (58299285).

The spelling of 28027203 in words is "twenty-eight million, twenty-seven thousand, two hundred three".