2808836 has 12 divisors (see below), whose sum is σ = 4928028. Its totient is φ = 1400832.

The previous prime is 2808833. The next prime is 2808847. The reversal of 2808836 is 6388082.

2808836 is digitally balanced in base 5, 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 2119936 + 688900 = 1456^2 + 830^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2808796 and 2808805.

It is not an unprimeable number, because it can be changed into a prime (2808833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1700 + ... + 2916.

It is an arithmetic number, because the mean of its divisors is an integer number (410669).

2^2808836 is an apocalyptic number.

It is an amenable number.

2808836 is a deficient number, since it is larger than the sum of its proper divisors (2119192).

2808836 is a wasteful number, since it uses less digits than its factorization.

2808836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1798 (or 1796 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 35.

The square root of 2808836 is about 1675.9582333698. The cubic root of 2808836 is about 141.0940806988.

The spelling of 2808836 in words is "two million, eight hundred eight thousand, eight hundred thirty-six".