6389445 has 16 divisors (see below), whose sum is σ = 10392192. Its totient is φ = 3351360.

The previous prime is 6389443. The next prime is 6389447. The reversal of 6389445 is 5449836.

It is an interprime number because it is at equal distance from previous prime (6389443) and next prime (6389447).

It is not a de Polignac number, because 6389445 - 2¹ = 6389443 is a prime.

It is a d-powerful number, because it can be written as 6² + 3⁹ + 8⁷ + 9² + 4³ + 4¹¹ + 5⁷ .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6389443) 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, 2577 + ... + 4406.

It is an arithmetic number, because the mean of its divisors is an integer number (649512).

Almost surely, 2^6389445 is an apocalyptic number.

It is an amenable number.

6389445 is a deficient number, since it is larger than the sum of its proper divisors (4002747).

6389445 is a wasteful number, since it uses less digits than its factorization.

6389445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7052.

The product of its digits is 103680, while the sum is 39.

The square root of 6389445 is about 2527.7351522658. The cubic root of 6389445 is about 185.5614305785.

The spelling of 6389445 in words is "six million, three hundred eighty-nine thousand, four hundred forty-five".