28569043 has 2 divisors, whose sum is σ = 28569044. Its totient is φ = 28569042.

The previous prime is 28569041. The next prime is 28569053. The reversal of 28569043 is 34096582.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28569043 - 2¹ = 28569041 is a prime.

Together with 28569041, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 28568993 and 28569011.

It is not a weakly prime, because it can be changed into another prime (28569041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14284521 + 14284522.

It is an arithmetic number, because the mean of its divisors is an integer number (14284522).

Almost surely, 2^28569043 is an apocalyptic number.

28569043 is a deficient number, since it is larger than the sum of its proper divisors (1).

28569043 is an equidigital number, since it uses as much as digits as its factorization.

28569043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 28569043 is about 5345.0016838164. The cubic root of 28569043 is about 305.7022000575.

The spelling of 28569043 in words is "twenty-eight million, five hundred sixty-nine thousand, forty-three".