28227303 has 12 divisors (see below), whose sum is σ = 43909320. Its totient is φ = 17370576.

The previous prime is 28227299. The next prime is 28227347. The reversal of 28227303 is 30372282.

It is not a de Polignac number, because 28227303 - 2² = 28227299 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28227373) 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 11 ways as a sum of consecutive naturals, for example, 120513 + ... + 120746.

It is an arithmetic number, because the mean of its divisors is an integer number (3659110).

Almost surely, 2^28227303 is an apocalyptic number.

28227303 is a deficient number, since it is larger than the sum of its proper divisors (15682017).

28227303 is a wasteful number, since it uses less digits than its factorization.

28227303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241278 (or 241275 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 28227303 is about 5312.9373231763. The cubic root of 28227303 is about 304.4783810191.

Adding to 28227303 its reverse (30372282), we get a palindrome (58599585).

The spelling of 28227303 in words is "twenty-eight million, two hundred twenty-seven thousand, three hundred three".