6804859 has 2 divisors, whose sum is σ = 6804860. Its totient is φ = 6804858.

The previous prime is 6804857. The next prime is 6804871. The reversal of 6804859 is 9584086.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6804859 - 2¹ = 6804857 is a prime.

It is a super-2 number, since 2×6804859² = 92612212019762, which contains 22 as substring.

Together with 6804857, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6804857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402429 + 3402430.

It is an arithmetic number, because the mean of its divisors is an integer number (3402430).

Almost surely, 2^6804859 is an apocalyptic number.

6804859 is a deficient number, since it is larger than the sum of its proper divisors (1).

6804859 is an equidigital number, since it uses as much as digits as its factorization.

6804859 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 6804859 is about 2608.6124664273. The cubic root of 6804859 is about 189.4987619517.

The spelling of 6804859 in words is "six million, eight hundred four thousand, eight hundred fifty-nine".