2189017 has 2 divisors, whose sum is σ = 2189018. Its totient is φ = 2189016.

The previous prime is 2188993. The next prime is 2189021. The reversal of 2189017 is 7109812.

2189017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1700416 + 488601 = 1304^2 + 699^2 .

It is a cyclic number.

It is not a de Polignac number, because 2189017 - 2¹¹ = 2186969 is a prime.

It is equal to p₁₆₁₉₂₉ and since 2189017 and 161929 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (2189027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1094508 + 1094509.

It is an arithmetic number, because the mean of its divisors is an integer number (1094509).

2^2189017 is an apocalyptic number.

It is an amenable number.

2189017 is a deficient number, since it is larger than the sum of its proper divisors (1).

2189017 is an equidigital number, since it uses as much as digits as its factorization.

2189017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 28.

The square root of 2189017 is about 1479.5326964958. The cubic root of 2189017 is about 129.8423532830.

The spelling of 2189017 in words is "two million, one hundred eighty-nine thousand, seventeen".