28116307 has 2 divisors, whose sum is σ = 28116308. Its totient is φ = 28116306.

The previous prime is 28116301. The next prime is 28116313. The reversal of 28116307 is 70361182.

It is a balanced prime because it is at equal distance from previous prime (28116301) and next prime (28116313).

It is a cyclic number.

It is not a de Polignac number, because 28116307 - 2³ = 28116299 is a prime.

It is not a weakly prime, because it can be changed into another prime (28116301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14058153 + 14058154.

It is an arithmetic number, because the mean of its divisors is an integer number (14058154).

Almost surely, 2^28116307 is an apocalyptic number.

28116307 is a deficient number, since it is larger than the sum of its proper divisors (1).

28116307 is an equidigital number, since it uses as much as digits as its factorization.

28116307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 28116307 is about 5302.4812116593. The cubic root of 28116307 is about 304.0787646496.

Adding to 28116307 its reverse (70361182), we get a palindrome (98477489).

The spelling of 28116307 in words is "twenty-eight million, one hundred sixteen thousand, three hundred seven".