6389968 has 40 divisors (see below), whose sum is σ = 13776896. Its totient is φ = 2851200.

The previous prime is 6389963. The next prime is 6389983. The reversal of 6389968 is 8699836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5953 + ... + 6943.

Almost surely, 2^6389968 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6389968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6888448).

6389968 is an abundant number, since it is smaller than the sum of its proper divisors (7386928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6389968 is a wasteful number, since it uses less digits than its factorization.

6389968 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043 (or 1037 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The square root of 6389968 is about 2527.8386024428. The cubic root of 6389968 is about 185.5664934064.

The spelling of 6389968 in words is "six million, three hundred eighty-nine thousand, nine hundred sixty-eight".