6806005 has 8 divisors (see below), whose sum is σ = 8251992. Its totient is φ = 5388288.

The previous prime is 6805991. The next prime is 6806017. The reversal of 6806005 is 5006086.

It can be written as a sum of positive squares in 4 ways, for example, as 40804 + 6765201 = 202^2 + 2601^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6806005 - 2¹⁵ = 6773237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6532 + ... + 7501.

It is an arithmetic number, because the mean of its divisors is an integer number (1031499).

Almost surely, 2^6806005 is an apocalyptic number.

It is an amenable number.

6806005 is a deficient number, since it is larger than the sum of its proper divisors (1445987).

6806005 is a wasteful number, since it uses less digits than its factorization.

6806005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14135.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 6806005 is about 2608.8321141844. The cubic root of 6806005 is about 189.5093991249.

The spelling of 6806005 in words is "six million, eight hundred six thousand, five".