28569883 has 4 divisors (see below), whose sum is σ = 29342080. Its totient is φ = 27797688.

The previous prime is 28569869. The next prime is 28569889. The reversal of 28569883 is 38896582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28569883 - 2⁵ = 28569851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28569889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 386043 + ... + 386116.

It is an arithmetic number, because the mean of its divisors is an integer number (7335520).

Almost surely, 2^28569883 is an apocalyptic number.

28569883 is a deficient number, since it is larger than the sum of its proper divisors (772197).

28569883 is an equidigital number, since it uses as much as digits as its factorization.

28569883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 772196.

The product of its digits is 829440, while the sum is 49.

The square root of 28569883 is about 5345.0802613244. The cubic root of 28569883 is about 305.7051961599.

The spelling of 28569883 in words is "twenty-eight million, five hundred sixty-nine thousand, eight hundred eighty-three".