28826779 has 2 divisors, whose sum is σ = 28826780. Its totient is φ = 28826778.

The previous prime is 28826771. The next prime is 28826801. The reversal of 28826779 is 97762882.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28826779 - 2³ = 28826771 is a prime.

It is not a weakly prime, because it can be changed into another prime (28826771) 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, 14413389 + 14413390.

It is an arithmetic number, because the mean of its divisors is an integer number (14413390).

Almost surely, 2^28826779 is an apocalyptic number.

28826779 is a deficient number, since it is larger than the sum of its proper divisors (1).

28826779 is an equidigital number, since it uses as much as digits as its factorization.

28826779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 49.

The square root of 28826779 is about 5369.0575523084. The cubic root of 28826779 is about 306.6187481577.

The spelling of 28826779 in words is "twenty-eight million, eight hundred twenty-six thousand, seven hundred seventy-nine".