28514449 has 2 divisors, whose sum is σ = 28514450. Its totient is φ = 28514448.

The previous prime is 28514441. The next prime is 28514471. The reversal of 28514449 is 94441582.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21224449 + 7290000 = 4607^2 + 2700^2 .

It is a cyclic number.

It is not a de Polignac number, because 28514449 - 2³ = 28514441 is a prime.

It is not a weakly prime, because it can be changed into another prime (28514441) 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, 14257224 + 14257225.

It is an arithmetic number, because the mean of its divisors is an integer number (14257225).

Almost surely, 2^28514449 is an apocalyptic number.

It is an amenable number.

28514449 is a deficient number, since it is larger than the sum of its proper divisors (1).

28514449 is an equidigital number, since it uses as much as digits as its factorization.

28514449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46080, while the sum is 37.

The square root of 28514449 is about 5339.8922273769. The cubic root of 28514449 is about 305.5073487267.

The spelling of 28514449 in words is "twenty-eight million, five hundred fourteen thousand, four hundred forty-nine".