28352887 has 2 divisors, whose sum is σ = 28352888. Its totient is φ = 28352886.

The previous prime is 28352881. The next prime is 28352893. The reversal of 28352887 is 78825382.

It is a balanced prime because it is at equal distance from previous prime (28352881) and next prime (28352893).

It is a cyclic number.

It is not a de Polignac number, because 28352887 - 2¹⁵ = 28320119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28352881) 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, 14176443 + 14176444.

It is an arithmetic number, because the mean of its divisors is an integer number (14176444).

Almost surely, 2^28352887 is an apocalyptic number.

28352887 is a deficient number, since it is larger than the sum of its proper divisors (1).

28352887 is an equidigital number, since it uses as much as digits as its factorization.

28352887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 215040, while the sum is 43.

The square root of 28352887 is about 5324.7429045917. The cubic root of 28352887 is about 304.9292570857.

The spelling of 28352887 in words is "twenty-eight million, three hundred fifty-two thousand, eight hundred eighty-seven".