2806728 has 32 divisors (see below), whose sum is σ = 7106400. Its totient is φ = 923648.

The previous prime is 2806711. The next prime is 2806757. The reversal of 2806728 is 8276082.

2806728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 1288 + ... + 2696.

It is an arithmetic number, because the mean of its divisors is an integer number (222075).

2^2806728 is an apocalyptic number.

It is an amenable number.

2806728 is an abundant number, since it is smaller than the sum of its proper divisors (4299672).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2806728 is a wasteful number, since it uses less digits than its factorization.

2806728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1501 (or 1497 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 33.

The square root of 2806728 is about 1675.3292213771. The cubic root of 2806728 is about 141.0587753555.

The spelling of 2806728 in words is "two million, eight hundred six thousand, seven hundred twenty-eight".