6844381 has 4 divisors (see below), whose sum is σ = 6856092. Its totient is φ = 6832672.

The previous prime is 6844379. The next prime is 6844403. The reversal of 6844381 is 1834486.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1834486 = 2 ⋅917243.

It can be written as a sum of positive squares in 2 ways, for example, as 2576025 + 4268356 = 1605^2 + 2066^2 .

It is a cyclic number.

It is not a de Polignac number, because 6844381 - 2¹ = 6844379 is a prime.

It is a super-2 number, since 2×6844381² = 93691102546322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6841381) 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, 4930 + ... + 6163.

It is an arithmetic number, because the mean of its divisors is an integer number (1714023).

Almost surely, 2^6844381 is an apocalyptic number.

It is an amenable number.

6844381 is a deficient number, since it is larger than the sum of its proper divisors (11711).

6844381 is a wasteful number, since it uses less digits than its factorization.

6844381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11710.

The product of its digits is 18432, while the sum is 34.

The square root of 6844381 is about 2616.1767906623. The cubic root of 6844381 is about 189.8649178353.

It can be divided in two parts, 6844 and 381, that added together give a square (7225 = 85²).

The spelling of 6844381 in words is "six million, eight hundred forty-four thousand, three hundred eighty-one".