28300003 has 2 divisors, whose sum is σ = 28300004. Its totient is φ = 28300002.

The previous prime is 28300001. The next prime is 28300007. The reversal of 28300003 is 30000382.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28300003 - 2¹ = 28300001 is a prime.

Together with 28300001, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 28300003.

It is not a weakly prime, because it can be changed into another prime (28300001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14150001 + 14150002.

It is an arithmetic number, because the mean of its divisors is an integer number (14150002).

Almost surely, 2^28300003 is an apocalyptic number.

28300003 is a deficient number, since it is larger than the sum of its proper divisors (1).

28300003 is an equidigital number, since it uses as much as digits as its factorization.

28300003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 28300003 is about 5319.7747132750. The cubic root of 28300003 is about 304.7395537083.

Adding to 28300003 its reverse (30000382), we get a palindrome (58300385).

The spelling of 28300003 in words is "twenty-eight million, three hundred thousand, three".