6804638 has 4 divisors (see below), whose sum is σ = 10206960. Its totient is φ = 3402318.

The previous prime is 6804583. The next prime is 6804649. The reversal of 6804638 is 8364086.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8364086 = 2 ⋅4182043.

It is a super-2 number, since 2×6804638² = 92606196622088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 6804598 and 6804607.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1701158 + ... + 1701161.

It is an arithmetic number, because the mean of its divisors is an integer number (2551740).

Almost surely, 2^6804638 is an apocalyptic number.

6804638 is a deficient number, since it is larger than the sum of its proper divisors (3402322).

6804638 is a wasteful number, since it uses less digits than its factorization.

6804638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3402321.

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 6804638 is about 2608.5701063993. The cubic root of 6804638 is about 189.4967104921.

The spelling of 6804638 in words is "six million, eight hundred four thousand, six hundred thirty-eight".