28268677 has 2 divisors, whose sum is σ = 28268678. Its totient is φ = 28268676.

The previous prime is 28268623. The next prime is 28268689. The reversal of 28268677 is 77686282.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25341156 + 2927521 = 5034^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 28268677 - 2¹¹ = 28266629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28268377) 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, 14134338 + 14134339.

It is an arithmetic number, because the mean of its divisors is an integer number (14134339).

Almost surely, 2^28268677 is an apocalyptic number.

It is an amenable number.

28268677 is a deficient number, since it is larger than the sum of its proper divisors (1).

28268677 is an equidigital number, since it uses as much as digits as its factorization.

28268677 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 46.

The square root of 28268677 is about 5316.8296004292. The cubic root of 28268677 is about 304.6270708490.

The spelling of 28268677 in words is "twenty-eight million, two hundred sixty-eight thousand, six hundred seventy-seven".