28682897 has 2 divisors, whose sum is σ = 28682898. Its totient is φ = 28682896.

The previous prime is 28682887. The next prime is 28682917. The reversal of 28682897 is 79828682.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20394256 + 8288641 = 4516^2 + 2879^2 .

It is a cyclic number.

It is not a de Polignac number, because 28682897 - 2¹² = 28678801 is a prime.

It is not a weakly prime, because it can be changed into another prime (28682867) 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, 14341448 + 14341449.

It is an arithmetic number, because the mean of its divisors is an integer number (14341449).

Almost surely, 2^28682897 is an apocalyptic number.

It is an amenable number.

28682897 is a deficient number, since it is larger than the sum of its proper divisors (1).

28682897 is an equidigital number, since it uses as much as digits as its factorization.

28682897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 50.

The square root of 28682897 is about 5355.6416048873. The cubic root of 28682897 is about 306.1077589067.

The spelling of 28682897 in words is "twenty-eight million, six hundred eighty-two thousand, eight hundred ninety-seven".