28095449 has 2 divisors, whose sum is σ = 28095450. Its totient is φ = 28095448.

The previous prime is 28095421. The next prime is 28095451. The reversal of 28095449 is 94459082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18835600 + 9259849 = 4340^2 + 3043^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28095449 is a prime.

Together with 28095451, 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 (28095409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14047724 + 14047725.

It is an arithmetic number, because the mean of its divisors is an integer number (14047725).

Almost surely, 2^28095449 is an apocalyptic number.

It is an amenable number.

28095449 is a deficient number, since it is larger than the sum of its proper divisors (1).

28095449 is an equidigital number, since it uses as much as digits as its factorization.

28095449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 28095449 is about 5300.5140316766. The cubic root of 28095449 is about 304.0035527343.

The spelling of 28095449 in words is "twenty-eight million, ninety-five thousand, four hundred forty-nine".