6286389 has 4 divisors (see below), whose sum is σ = 8381856. Its totient is φ = 4190924.

The previous prime is 6286367. The next prime is 6286403. The reversal of 6286389 is 9836826.

6286389 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6286389 is a prime.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 6286389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6286309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1047729 + ... + 1047734.

It is an arithmetic number, because the mean of its divisors is an integer number (2095464).

Almost surely, 2^6286389 is an apocalyptic number.

It is an amenable number.

6286389 is a deficient number, since it is larger than the sum of its proper divisors (2095467).

6286389 is a wasteful number, since it uses less digits than its factorization.

6286389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2095466.

The product of its digits is 124416, while the sum is 42.

The square root of 6286389 is about 2507.2672374520. The cubic root of 6286389 is about 184.5583719652.

The spelling of 6286389 in words is "six million, two hundred eighty-six thousand, three hundred eighty-nine".