28743203 has 2 divisors, whose sum is σ = 28743204. Its totient is φ = 28743202.

The previous prime is 28743167. The next prime is 28743229. The reversal of 28743203 is 30234782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28743203 - 2¹⁰ = 28742179 is a prime.

It is not a weakly prime, because it can be changed into another prime (28743233) 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 as a sum of consecutive naturals, namely, 14371601 + 14371602.

It is an arithmetic number, because the mean of its divisors is an integer number (14371602).

Almost surely, 2^28743203 is an apocalyptic number.

28743203 is a deficient number, since it is larger than the sum of its proper divisors (1).

28743203 is an equidigital number, since it uses as much as digits as its factorization.

28743203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The square root of 28743203 is about 5361.2687863975. The cubic root of 28743203 is about 306.3221399956.

Adding to 28743203 its reverse (30234782), we get a palindrome (58977985).

The spelling of 28743203 in words is "twenty-eight million, seven hundred forty-three thousand, two hundred three".