28595657 has 2 divisors, whose sum is σ = 28595658. Its totient is φ = 28595656.

The previous prime is 28595639. The next prime is 28595663. The reversal of 28595657 is 75659582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20620681 + 7974976 = 4541^2 + 2824^2 .

It is a cyclic number.

It is not a de Polignac number, because 28595657 - 2⁸ = 28595401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (28595257) 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, 14297828 + 14297829.

It is an arithmetic number, because the mean of its divisors is an integer number (14297829).

Almost surely, 2^28595657 is an apocalyptic number.

It is an amenable number.

28595657 is a deficient number, since it is larger than the sum of its proper divisors (1).

28595657 is an equidigital number, since it uses as much as digits as its factorization.

28595657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756000, while the sum is 47.

The square root of 28595657 is about 5347.4907199545. The cubic root of 28595657 is about 305.7970980357.

The spelling of 28595657 in words is "twenty-eight million, five hundred ninety-five thousand, six hundred fifty-seven".