28227893 has 2 divisors, whose sum is σ = 28227894. Its totient is φ = 28227892.

The previous prime is 28227889. The next prime is 28227907. The reversal of 28227893 is 39872282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25331089 + 2896804 = 5033^2 + 1702^2 .

It is a cyclic number.

It is not a de Polignac number, because 28227893 - 2² = 28227889 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 28227893.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28227883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14113946 + 14113947.

It is an arithmetic number, because the mean of its divisors is an integer number (14113947).

Almost surely, 2^28227893 is an apocalyptic number.

It is an amenable number.

28227893 is a deficient number, since it is larger than the sum of its proper divisors (1).

28227893 is an equidigital number, since it uses as much as digits as its factorization.

28227893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 41.

The square root of 28227893 is about 5312.9928477272. The cubic root of 28227893 is about 304.4805023812.

The spelling of 28227893 in words is "twenty-eight million, two hundred twenty-seven thousand, eight hundred ninety-three".