2671705 has 4 divisors (see below), whose sum is σ = 3206052. Its totient is φ = 2137360.

The previous prime is 2671693. The next prime is 2671729. The reversal of 2671705 is 5071762.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5071762 = 2 ⋅2535881.

It can be written as a sum of positive squares in 2 ways, for example, as 1106704 + 1565001 = 1052^2 + 1251^2 .

It is not a de Polignac number, because 2671705 - 2⁷ = 2671577 is a prime.

It is a Duffinian number.

2671705 is a lucky 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, 267166 + ... + 267175.

It is an arithmetic number, because the mean of its divisors is an integer number (801513).

2^2671705 is an apocalyptic number.

It is an amenable number.

2671705 is a deficient number, since it is larger than the sum of its proper divisors (534347).

2671705 is an equidigital number, since it uses as much as digits as its factorization.

2671705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534346.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2671705 is about 1634.5351021009. The cubic root of 2671705 is about 138.7595345557.

The spelling of 2671705 in words is "two million, six hundred seventy-one thousand, seven hundred five".