28068419 has 2 divisors, whose sum is σ = 28068420. Its totient is φ = 28068418.

The previous prime is 28068413. The next prime is 28068421. The reversal of 28068419 is 91486082.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28068419 - 2¹⁶ = 28002883 is a prime.

It is a super-2 number, since 2×28068419² = 1575672290319122, which contains 22 as substring.

Together with 28068421, 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 (28068413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14034209 + 14034210.

It is an arithmetic number, because the mean of its divisors is an integer number (14034210).

Almost surely, 2^28068419 is an apocalyptic number.

28068419 is a deficient number, since it is larger than the sum of its proper divisors (1).

28068419 is an equidigital number, since it uses as much as digits as its factorization.

28068419 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 38.

The square root of 28068419 is about 5297.9636654096. The cubic root of 28068419 is about 303.9060297910.

The spelling of 28068419 in words is "twenty-eight million, sixty-eight thousand, four hundred nineteen".