2849905 has 16 divisors (see below), whose sum is σ = 3643200. Its totient is φ = 2134080.

The previous prime is 2849893. The next prime is 2849927. The reversal of 2849905 is 5099482.

It is not a de Polignac number, because 2849905 - 2¹⁵ = 2817137 is a prime.

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, 12331 + ... + 12559.

It is an arithmetic number, because the mean of its divisors is an integer number (227700).

2^2849905 is an apocalyptic number.

It is an amenable number.

2849905 is a deficient number, since it is larger than the sum of its proper divisors (793295).

2849905 is a wasteful number, since it uses less digits than its factorization.

2849905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2849905 is about 1688.1661648072. The cubic root of 2849905 is about 141.7784185510.

The spelling of 2849905 in words is "two million, eight hundred forty-nine thousand, nine hundred five".