28798199 has 2 divisors, whose sum is σ = 28798200. Its totient is φ = 28798198.

The previous prime is 28798183. The next prime is 28798201. The reversal of 28798199 is 99189782.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28798199 - 2⁴ = 28798183 is a prime.

Together with 28798201, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28798199.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28795199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14399099 + 14399100.

It is an arithmetic number, because the mean of its divisors is an integer number (14399100).

Almost surely, 2^28798199 is an apocalyptic number.

28798199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28798199 is an equidigital number, since it uses as much as digits as its factorization.

28798199 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 53.

The square root of 28798199 is about 5366.3953451083. The cubic root of 28798199 is about 306.5173833646.

The spelling of 28798199 in words is "twenty-eight million, seven hundred ninety-eight thousand, one hundred ninety-nine".