28008677 has 2 divisors, whose sum is σ = 28008678. Its totient is φ = 28008676.

The previous prime is 28008661. The next prime is 28008683. The reversal of 28008677 is 77680082.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27888961 + 119716 = 5281^2 + 346^2 .

It is a cyclic number.

It is not a de Polignac number, because 28008677 - 2⁴ = 28008661 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28008677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28008637) 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, 14004338 + 14004339.

It is an arithmetic number, because the mean of its divisors is an integer number (14004339).

Almost surely, 2^28008677 is an apocalyptic number.

It is an amenable number.

28008677 is a deficient number, since it is larger than the sum of its proper divisors (1).

28008677 is an equidigital number, since it uses as much as digits as its factorization.

28008677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 28008677 is about 5292.3224580519. The cubic root of 28008677 is about 303.6902611890.

The spelling of 28008677 in words is "twenty-eight million, eight thousand, six hundred seventy-seven".