28107199 has 2 divisors, whose sum is σ = 28107200. Its totient is φ = 28107198.

The previous prime is 28107193. The next prime is 28107227. The reversal of 28107199 is 99170182.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28107199 - 2¹¹ = 28105151 is a prime.

It is a Chen prime.

It is equal to p_1747693 and since 28107199 and 1747693 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28107193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14053599 + 14053600.

It is an arithmetic number, because the mean of its divisors is an integer number (14053600).

Almost surely, 2^28107199 is an apocalyptic number.

28107199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28107199 is an equidigital number, since it uses as much as digits as its factorization.

28107199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 28107199 is about 5301.6222988817. The cubic root of 28107199 is about 304.0459266659.

The spelling of 28107199 in words is "twenty-eight million, one hundred seven thousand, one hundred ninety-nine".