6319889 has 2 divisors, whose sum is σ = 6319890. Its totient is φ = 6319888.

The previous prime is 6319867. The next prime is 6319891. The reversal of 6319889 is 9889136.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6225025 + 94864 = 2495^2 + 308^2 .

It is a cyclic number.

It is not a de Polignac number, because 6319889 - 2⁸ = 6319633 is a prime.

Together with 6319891, 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 (6319589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3159944 + 3159945.

It is an arithmetic number, because the mean of its divisors is an integer number (3159945).

Almost surely, 2^6319889 is an apocalyptic number.

It is an amenable number.

6319889 is a deficient number, since it is larger than the sum of its proper divisors (1).

6319889 is an equidigital number, since it uses as much as digits as its factorization.

6319889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 44.

The square root of 6319889 is about 2513.9389411837. The cubic root of 6319889 is about 184.8856268948.

The spelling of 6319889 in words is "six million, three hundred nineteen thousand, eight hundred eighty-nine".