6396239 has 2 divisors, whose sum is σ = 6396240. Its totient is φ = 6396238.

The previous prime is 6396223. The next prime is 6396241. The reversal of 6396239 is 9326936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6396239 - 2⁴ = 6396223 is a prime.

Together with 6396241, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6396259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198119 + 3198120.

It is an arithmetic number, because the mean of its divisors is an integer number (3198120).

Almost surely, 2^6396239 is an apocalyptic number.

6396239 is a deficient number, since it is larger than the sum of its proper divisors (1).

6396239 is an equidigital number, since it uses as much as digits as its factorization.

6396239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52488, while the sum is 38.

The square root of 6396239 is about 2529.0786860041. The cubic root of 6396239 is about 185.6271774356.

The spelling of 6396239 in words is "six million, three hundred ninety-six thousand, two hundred thirty-nine".