2227889 has 2 divisors, whose sum is σ = 2227890. Its totient is φ = 2227888.

The previous prime is 2227871. The next prime is 2227913. The reversal of 2227889 is 9887222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1575025 + 652864 = 1255^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 2227889 - 2¹⁶ = 2162353 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (2227859) 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, 1113944 + 1113945.

It is an arithmetic number, because the mean of its divisors is an integer number (1113945).

2^2227889 is an apocalyptic number.

It is an amenable number.

2227889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2227889 is an equidigital number, since it uses as much as digits as its factorization.

2227889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 38.

The square root of 2227889 is about 1492.6114698742. The cubic root of 2227889 is about 130.6064173103.

The spelling of 2227889 in words is "two million, two hundred twenty-seven thousand, eight hundred eighty-nine".