2839005 has 48 divisors (see below), whose sum is σ = 5556096. Its totient is φ = 1330560.

The previous prime is 2838937. The next prime is 2839007. The reversal of 2839005 is 5009382.

It is not a de Polignac number, because 2839005 - 2⁸ = 2838749 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2839005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2839007) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 13350 + ... + 13560.

It is an arithmetic number, because the mean of its divisors is an integer number (115752).

2^2839005 is an apocalyptic number.

It is an amenable number.

2839005 is a deficient number, since it is larger than the sum of its proper divisors (2717091).

2839005 is a wasteful number, since it uses less digits than its factorization.

2839005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 2839005 is about 1684.9347168362. The cubic root of 2839005 is about 141.5974348381.

The spelling of 2839005 in words is "two million, eight hundred thirty-nine thousand, five".