2885905 has 16 divisors (see below), whose sum is σ = 3815424. Its totient is φ = 2078080.

The previous prime is 2885893. The next prime is 2885917. The reversal of 2885905 is 5095882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2885893) and next prime (2885917).

It is not a de Polignac number, because 2885905 - 2¹³ = 2877713 is a prime.

It is a Duffinian number.

2885905 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7344 + ... + 7726.

It is an arithmetic number, because the mean of its divisors is an integer number (238464).

2^2885905 is an apocalyptic number.

It is an amenable number.

2885905 is a deficient number, since it is larger than the sum of its proper divisors (929519).

2885905 is a wasteful number, since it uses less digits than its factorization.

2885905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 536.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 2885905 is about 1698.7951612834. The cubic root of 2885905 is about 142.3729040153.

The spelling of 2885905 in words is "two million, eight hundred eighty-five thousand, nine hundred five".