6811705 has 4 divisors (see below), whose sum is σ = 8174052. Its totient is φ = 5449360.

The previous prime is 6811697. The next prime is 6811729. The reversal of 6811705 is 5071186.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4549689 + 2262016 = 2133^2 + 1504^2 .

It is not a de Polignac number, because 6811705 - 2³ = 6811697 is a prime.

It is a super-4 number, since 4×6811705⁴ (a number of 28 digits) contains 4444 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 681166 + ... + 681175.

It is an arithmetic number, because the mean of its divisors is an integer number (2043513).

Almost surely, 2^6811705 is an apocalyptic number.

It is an amenable number.

6811705 is a deficient number, since it is larger than the sum of its proper divisors (1362347).

6811705 is a wasteful number, since it uses less digits than its factorization.

6811705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362346.

The product of its (nonzero) digits is 1680, while the sum is 28.

The square root of 6811705 is about 2609.9243284049. The cubic root of 6811705 is about 189.5622887991.

The spelling of 6811705 in words is "six million, eight hundred eleven thousand, seven hundred five".