2706805 has 4 divisors (see below), whose sum is σ = 3248172. Its totient is φ = 2165440.

The previous prime is 2706799. The next prime is 2706817. The reversal of 2706805 is 5086072.

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 1164241 + 1542564 = 1079^2 + 1242^2 .

It is not a de Polignac number, because 2706805 - 2⁷ = 2706677 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270676 + ... + 270685.

It is an arithmetic number, because the mean of its divisors is an integer number (812043).

2^2706805 is an apocalyptic number.

It is an amenable number.

2706805 is a deficient number, since it is larger than the sum of its proper divisors (541367).

2706805 is an equidigital number, since it uses as much as digits as its factorization.

2706805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541366.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 2706805 is about 1645.2370649849. The cubic root of 2706805 is about 139.3645520934.

The spelling of 2706805 in words is "two million, seven hundred six thousand, eight hundred five".