2086705 has 8 divisors (see below), whose sum is σ = 2538792. Its totient is φ = 1646208.

The previous prime is 2086697. The next prime is 2086723. The reversal of 2086705 is 5076802.

It can be written as a sum of positive squares in 4 ways, for example, as 312481 + 1774224 = 559^2 + 1332^2 .

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 2086705 - 2³ = 2086697 is a prime.

It is a Duffinian 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, 2494 + ... + 3223.

It is an arithmetic number, because the mean of its divisors is an integer number (317349).

2^2086705 is an apocalyptic number.

It is an amenable number.

2086705 is a deficient number, since it is larger than the sum of its proper divisors (452087).

2086705 is an equidigital number, since it uses as much as digits as its factorization.

2086705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5795.

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

The square root of 2086705 is about 1444.5431803861. The cubic root of 2086705 is about 127.7871013291.

The spelling of 2086705 in words is "two million, eighty-six thousand, seven hundred five".