6396539 has 8 divisors (see below), whose sum is σ = 6794928. Its totient is φ = 6000640.

The previous prime is 6396491. The next prime is 6396541. The reversal of 6396539 is 9356936.

6396539 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6396539 is a prime.

It is a super-2 number, since 2×6396539² = 81831422357042, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6396496 and 6396505.

It is not an unprimeable number, because it can be changed into a prime (6396569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9659 + ... + 10299.

It is an arithmetic number, because the mean of its divisors is an integer number (849366).

Almost surely, 2^6396539 is an apocalyptic number.

6396539 is a deficient number, since it is larger than the sum of its proper divisors (398389).

6396539 is a wasteful number, since it uses less digits than its factorization.

6396539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its digits is 131220, while the sum is 41.

The square root of 6396539 is about 2529.1379954443. The cubic root of 6396539 is about 185.6300795203.

The spelling of 6396539 in words is "six million, three hundred ninety-six thousand, five hundred thirty-nine".