6396838479 has 12 divisors (see below), whose sum is σ = 9245578056. Its totient is φ = 4261928112.

The previous prime is 6396838463. The next prime is 6396838501. The reversal of 6396838479 is 9748386936.

It is not a de Polignac number, because 6396838479 - 2⁴ = 6396838463 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6396833479) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203784 + ... + 233069.

It is an arithmetic number, because the mean of its divisors is an integer number (770464838).

Almost surely, 2^6396838479 is an apocalyptic number.

6396838479 is a deficient number, since it is larger than the sum of its proper divisors (2848739577).

6396838479 is a wasteful number, since it uses less digits than its factorization.

6396838479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438486 (or 438483 counting only the distinct ones).

The product of its digits is 47029248, while the sum is 63.

The square root of 6396838479 is about 79980.2380529090. The cubic root of 6396838479 is about 1856.3297647457.

The spelling of 6396838479 in words is "six billion, three hundred ninety-six million, eight hundred thirty-eight thousand, four hundred seventy-nine".