6789638 has 4 divisors (see below), whose sum is σ = 10184460. Its totient is φ = 3394818.

The previous prime is 6789637. The next prime is 6789701. The reversal of 6789638 is 8369876.

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

It is an alternating number because its digits alternate between even and odd.

It is a junction number, because it is equal to n+sod(n) for n = 6789592 and 6789601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6789637) 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 as a sum of consecutive naturals, namely, 1697408 + ... + 1697411.

It is an arithmetic number, because the mean of its divisors is an integer number (2546115).

Almost surely, 2^6789638 is an apocalyptic number.

6789638 is a deficient number, since it is larger than the sum of its proper divisors (3394822).

6789638 is a wasteful number, since it uses less digits than its factorization.

6789638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394821.

The product of its digits is 435456, while the sum is 47.

The square root of 6789638 is about 2605.6933818084. The cubic root of 6789638 is about 189.3573672073.

The spelling of 6789638 in words is "six million, seven hundred eighty-nine thousand, six hundred thirty-eight".