2606905 has 16 divisors (see below), whose sum is σ = 3602304. Its totient is φ = 1774080.

The previous prime is 2606887. The next prime is 2606917. The reversal of 2606905 is 5096062.

It is not a de Polignac number, because 2606905 - 2⁵ = 2606873 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 7209 + ... + 7561.

It is an arithmetic number, because the mean of its divisors is an integer number (225144).

2^2606905 is an apocalyptic number.

It is an amenable number.

2606905 is a deficient number, since it is larger than the sum of its proper divisors (995399).

2606905 is a wasteful number, since it uses less digits than its factorization.

2606905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 576.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 2606905 is about 1614.5912795503. The cubic root of 2606905 is about 137.6285079578.

The spelling of 2606905 in words is "two million, six hundred six thousand, nine hundred five".