28102303 has 2 divisors, whose sum is σ = 28102304. Its totient is φ = 28102302.

The previous prime is 28102289. The next prime is 28102331. The reversal of 28102303 is 30320182.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28102303 - 2¹³ = 28094111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28102103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14051151 + 14051152.

It is an arithmetic number, because the mean of its divisors is an integer number (14051152).

Almost surely, 2^28102303 is an apocalyptic number.

28102303 is a deficient number, since it is larger than the sum of its proper divisors (1).

28102303 is an equidigital number, since it uses as much as digits as its factorization.

28102303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 28102303 is about 5301.1605333172. The cubic root of 28102303 is about 304.0282716955.

Adding to 28102303 its reverse (30320182), we get a palindrome (58422485).

The spelling of 28102303 in words is "twenty-eight million, one hundred two thousand, three hundred three".