6389712 has 80 divisors (see below), whose sum is σ = 20970880. Its totient is φ = 1824768.

The previous prime is 6389711. The next prime is 6389717. The reversal of 6389712 is 2179836.

6389712 is a `hidden beast` number, since 638 + 9 + 7 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is one of the 548 Lynch-Bell numbers.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389711) 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 15 ways as a sum of consecutive naturals, for example, 1968 + ... + 4080.

It is an arithmetic number, because the mean of its divisors is an integer number (262136).

Almost surely, 2^6389712 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 6389712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10485440).

6389712 is an abundant number, since it is smaller than the sum of its proper divisors (14581168).

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

6389712 is a wasteful number, since it uses less digits than its factorization.

6389712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2137 (or 2125 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 6389712 is about 2527.7879657914. The cubic root of 6389712 is about 185.5640152690.

The spelling of 6389712 in words is "six million, three hundred eighty-nine thousand, seven hundred twelve".