28370099 has 2 divisors, whose sum is σ = 28370100. Its totient is φ = 28370098.

The previous prime is 28370077. The next prime is 28370101. The reversal of 28370099 is 99007382.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28370099 - 2⁸ = 28369843 is a prime.

Together with 28370101, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28370029) 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, 14185049 + 14185050.

It is an arithmetic number, because the mean of its divisors is an integer number (14185050).

Almost surely, 2^28370099 is an apocalyptic number.

28370099 is a deficient number, since it is larger than the sum of its proper divisors (1).

28370099 is an equidigital number, since it uses as much as digits as its factorization.

28370099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 38.

The square root of 28370099 is about 5326.3588876455. The cubic root of 28370099 is about 304.9909484011.

The spelling of 28370099 in words is "twenty-eight million, three hundred seventy thousand, ninety-nine".