2785005 has 24 divisors (see below), whose sum is σ = 4867200. Its totient is φ = 1473120.

The previous prime is 2784997. The next prime is 2785019. The reversal of 2785005 is 5005872.

It is a happy number.

It is not a de Polignac number, because 2785005 - 2³ = 2784997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2785005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8800 + ... + 9110.

It is an arithmetic number, because the mean of its divisors is an integer number (202800).

2^2785005 is an apocalyptic number.

It is an amenable number.

2785005 is a deficient number, since it is larger than the sum of its proper divisors (2082195).

2785005 is a wasteful number, since it uses less digits than its factorization.

2785005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 518 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 27.

The square root of 2785005 is about 1668.8334248810. The cubic root of 2785005 is about 140.6939188107.

The spelling of 2785005 in words is "two million, seven hundred eighty-five thousand, five".