28519199 has 2 divisors, whose sum is σ = 28519200. Its totient is φ = 28519198.

The previous prime is 28519159. The next prime is 28519201. The reversal of 28519199 is 99191582.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28519199 is a prime.

Together with 28519201, 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 (28519109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14259599 + 14259600.

It is an arithmetic number, because the mean of its divisors is an integer number (14259600).

Almost surely, 2^28519199 is an apocalyptic number.

28519199 is a deficient number, since it is larger than the sum of its proper divisors (1).

28519199 is an equidigital number, since it uses as much as digits as its factorization.

28519199 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 44.

The square root of 28519199 is about 5340.3369743865. The cubic root of 28519199 is about 305.5243118149.

The spelling of 28519199 in words is "twenty-eight million, five hundred nineteen thousand, one hundred ninety-nine".