28685183 has 2 divisors, whose sum is σ = 28685184. Its totient is φ = 28685182.

The previous prime is 28685149. The next prime is 28685213. The reversal of 28685183 is 38158682.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28685183 - 2⁶ = 28685119 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 28685183.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28685113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14342591 + 14342592.

It is an arithmetic number, because the mean of its divisors is an integer number (14342592).

Almost surely, 2^28685183 is an apocalyptic number.

28685183 is a deficient number, since it is larger than the sum of its proper divisors (1).

28685183 is an equidigital number, since it uses as much as digits as its factorization.

28685183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 92160, while the sum is 41.

The square root of 28685183 is about 5355.8550204426. The cubic root of 28685183 is about 306.1158908578.

The spelling of 28685183 in words is "twenty-eight million, six hundred eighty-five thousand, one hundred eighty-three".