2827865 has 24 divisors (see below), whose sum is σ = 3831360. Its totient is φ = 1997568.

The previous prime is 2827823. The next prime is 2827901. The reversal of 2827865 is 5687282.

2827865 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2827865 - 2¹⁶ = 2762329 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 27404 + ... + 27506.

It is an arithmetic number, because the mean of its divisors is an integer number (159640).

2^2827865 is an apocalyptic number.

It is an amenable number.

2827865 is a deficient number, since it is larger than the sum of its proper divisors (1003495).

2827865 is a wasteful number, since it uses less digits than its factorization.

2827865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 144 counting only the distinct ones).

The product of its digits is 53760, while the sum is 38.

The square root of 2827865 is about 1681.6257015162. The cubic root of 2827865 is about 141.4119868708.

The spelling of 2827865 in words is "two million, eight hundred twenty-seven thousand, eight hundred sixty-five".