6368989 has 4 divisors (see below), whose sum is σ = 6948000. Its totient is φ = 5789980.

The previous prime is 6368983. The next prime is 6369001. The reversal of 6368989 is 9898636.

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 not a de Polignac number, because 6368989 - 2¹⁵ = 6336221 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6368983) 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 3 ways as a sum of consecutive naturals, for example, 289489 + ... + 289510.

It is an arithmetic number, because the mean of its divisors is an integer number (1737000).

Almost surely, 2^6368989 is an apocalyptic number.

It is an amenable number.

6368989 is a deficient number, since it is larger than the sum of its proper divisors (579011).

6368989 is a wasteful number, since it uses less digits than its factorization.

6368989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579010.

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

The square root of 6368989 is about 2523.6855984849. The cubic root of 6368989 is about 185.3631920419.

The spelling of 6368989 in words is "six million, three hundred sixty-eight thousand, nine hundred eighty-nine".