6187889 has 2 divisors, whose sum is σ = 6187890. Its totient is φ = 6187888.

The previous prime is 6187873. The next prime is 6187891. The reversal of 6187889 is 9887816.

6187889 is digitally balanced in base 3, 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., 3579664 + 2608225 = 1892^2 + 1615^2 .

It is a cyclic number.

It is not a de Polignac number, because 6187889 - 2⁴ = 6187873 is a prime.

Together with 6187891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6187849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3093944 + 3093945.

It is an arithmetic number, because the mean of its divisors is an integer number (3093945).

Almost surely, 2^6187889 is an apocalyptic number.

It is an amenable number.

6187889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6187889 is an equidigital number, since it uses as much as digits as its factorization.

6187889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 193536, while the sum is 47.

The square root of 6187889 is about 2487.5467834797. The cubic root of 6187889 is about 183.5893587306.

The spelling of 6187889 in words is "six million, one hundred eighty-seven thousand, eight hundred eighty-nine".