28448659 has 2 divisors, whose sum is σ = 28448660. Its totient is φ = 28448658.

The previous prime is 28448657. The next prime is 28448689. The reversal of 28448659 is 95684482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28448659 - 2¹ = 28448657 is a prime.

Together with 28448657, 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 (28448653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14224329 + 14224330.

It is an arithmetic number, because the mean of its divisors is an integer number (14224330).

Almost surely, 2^28448659 is an apocalyptic number.

28448659 is a deficient number, since it is larger than the sum of its proper divisors (1).

28448659 is an equidigital number, since it uses as much as digits as its factorization.

28448659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 552960, while the sum is 46.

The square root of 28448659 is about 5333.7284332819. The cubic root of 28448659 is about 305.2722070460.

The spelling of 28448659 in words is "twenty-eight million, four hundred forty-eight thousand, six hundred fifty-nine".