28016039 has 2 divisors, whose sum is σ = 28016040. Its totient is φ = 28016038.

The previous prime is 28016029. The next prime is 28016041. The reversal of 28016039 is 93061082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28016039 - 2¹² = 28011943 is a prime.

It is a Sophie Germain prime.

Together with 28016041, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28016029) 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 as a sum of consecutive naturals, namely, 14008019 + 14008020.

It is an arithmetic number, because the mean of its divisors is an integer number (14008020).

Almost surely, 2^28016039 is an apocalyptic number.

28016039 is a deficient number, since it is larger than the sum of its proper divisors (1).

28016039 is an equidigital number, since it uses as much as digits as its factorization.

28016039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 28016039 is about 5293.0179482031. The cubic root of 28016039 is about 303.7168668946.

The spelling of 28016039 in words is "twenty-eight million, sixteen thousand, thirty-nine".