6843381 has 4 divisors (see below), whose sum is σ = 9124512. Its totient is φ = 4562252.

The previous prime is 6843379. The next prime is 6843427. The reversal of 6843381 is 1833486.

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 6843381 - 2¹ = 6843379 is a prime.

It is a super-2 number, since 2×6843381² = 93663727022322, which contains 22 as substring.

It is a D-number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6843311) 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, 1140561 + ... + 1140566.

It is an arithmetic number, because the mean of its divisors is an integer number (2281128).

Almost surely, 2^6843381 is an apocalyptic number.

It is an amenable number.

6843381 is a deficient number, since it is larger than the sum of its proper divisors (2281131).

6843381 is a wasteful number, since it uses less digits than its factorization.

6843381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2281130.

The product of its digits is 13824, while the sum is 33.

The square root of 6843381 is about 2615.9856650983. The cubic root of 6843381 is about 189.8556706312.

The spelling of 6843381 in words is "six million, eight hundred forty-three thousand, three hundred eighty-one".