6841391 has 4 divisors (see below), whose sum is σ = 6850872. Its totient is φ = 6831912.

The previous prime is 6841381. The next prime is 6841397. The reversal of 6841391 is 1931486.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6841391 - 2¹⁸ = 6579247 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 (6841397) 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 3 ways as a sum of consecutive naturals, for example, 3560 + ... + 5133.

It is an arithmetic number, because the mean of its divisors is an integer number (1712718).

Almost surely, 2^6841391 is an apocalyptic number.

6841391 is a deficient number, since it is larger than the sum of its proper divisors (9481).

6841391 is an equidigital number, since it uses as much as digits as its factorization.

6841391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9480.

The product of its digits is 5184, while the sum is 32.

The square root of 6841391 is about 2615.6052836772. The cubic root of 6841391 is about 189.8372660145.

The spelling of 6841391 in words is "six million, eight hundred forty-one thousand, three hundred ninety-one".