3189889 has 2 divisors, whose sum is σ = 3189890. Its totient is φ = 3189888.

The previous prime is 3189871. The next prime is 3189899. The reversal of 3189889 is 9889813.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3122289 + 67600 = 1767^2 + 260^2 .

It is an emirp because it is prime and its reverse (9889813) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3189889 - 2⁹ = 3189377 is a prime.

It is not a weakly prime, because it can be changed into another prime (3189839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1594944 + 1594945.

It is an arithmetic number, because the mean of its divisors is an integer number (1594945).

Almost surely, 2^3189889 is an apocalyptic number.

It is an amenable number.

3189889 is a deficient number, since it is larger than the sum of its proper divisors (1).

3189889 is an equidigital number, since it uses as much as digits as its factorization.

3189889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 46.

The square root of 3189889 is about 1786.0260356445. The cubic root of 3189889 is about 147.2058910144.

The spelling of 3189889 in words is "three million, one hundred eighty-nine thousand, eight hundred eighty-nine".