28552879 has 2 divisors, whose sum is σ = 28552880. Its totient is φ = 28552878.

The previous prime is 28552871. The next prime is 28552897. The reversal of 28552879 is 97825582.

Together with next prime (28552897) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28552879 - 2³ = 28552871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28552871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14276439 + 14276440.

It is an arithmetic number, because the mean of its divisors is an integer number (14276440).

Almost surely, 2^28552879 is an apocalyptic number.

28552879 is a deficient number, since it is larger than the sum of its proper divisors (1).

28552879 is an equidigital number, since it uses as much as digits as its factorization.

28552879 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 403200, while the sum is 46.

The square root of 28552879 is about 5343.4894030025. The cubic root of 28552879 is about 305.6445350461.

The spelling of 28552879 in words is "twenty-eight million, five hundred fifty-two thousand, eight hundred seventy-nine".