6805438 has 8 divisors (see below), whose sum is σ = 10445688. Its totient is φ = 3323544.

The previous prime is 6805433. The next prime is 6805441. The reversal of 6805438 is 8345086.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6805433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39481 + ... + 39652.

It is an arithmetic number, because the mean of its divisors is an integer number (1305711).

Almost surely, 2^6805438 is an apocalyptic number.

6805438 is a deficient number, since it is larger than the sum of its proper divisors (3640250).

6805438 is a wasteful number, since it uses less digits than its factorization.

6805438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79178.

The product of its (nonzero) digits is 23040, while the sum is 34.

The square root of 6805438 is about 2608.7234426056. The cubic root of 6805438 is about 189.5041363796.

It can be divided in two parts, 680 and 5438, that multiplied together give a triangular number (3697840 = T₂₇₁₉).

The spelling of 6805438 in words is "six million, eight hundred five thousand, four hundred thirty-eight".