2808873 has 12 divisors (see below), whose sum is σ = 4072068. Its totient is φ = 1865760.

The previous prime is 2808863. The next prime is 2808877. The reversal of 2808873 is 3788082.

2808873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2108304 + 700569 = 1452^2 + 837^2 .

It is not a de Polignac number, because 2808873 - 2⁶ = 2808809 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2808877) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3811 + ... + 4487.

It is an arithmetic number, because the mean of its divisors is an integer number (339339).

2^2808873 is an apocalyptic number.

It is an amenable number.

2808873 is a deficient number, since it is larger than the sum of its proper divisors (1263195).

2808873 is a wasteful number, since it uses less digits than its factorization.

2808873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144 (or 1141 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 2808873 is about 1675.9692717947. The cubic root of 2808873 is about 141.0947002269.

The spelling of 2808873 in words is "two million, eight hundred eight thousand, eight hundred seventy-three".