6384391 has 8 divisors (see below), whose sum is σ = 6973344. Its totient is φ = 5809440.

The previous prime is 6384359. The next prime is 6384439. The reversal of 6384391 is 1934836.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6384391 - 2⁵ = 6384359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6384491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2536 + ... + 4381.

It is an arithmetic number, because the mean of its divisors is an integer number (871668).

Almost surely, 2^6384391 is an apocalyptic number.

6384391 is a deficient number, since it is larger than the sum of its proper divisors (588953).

6384391 is a wasteful number, since it uses less digits than its factorization.

6384391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7001.

The product of its digits is 15552, while the sum is 34.

The square root of 6384391 is about 2526.7352453314. The cubic root of 6384391 is about 185.5124918027.

The spelling of 6384391 in words is "six million, three hundred eighty-four thousand, three hundred ninety-one".