2806890 has 16 divisors (see below), whose sum is σ = 6736608. Its totient is φ = 748496.

The previous prime is 2806861. The next prime is 2806907. The reversal of 2806890 is 986082.

2806890 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, 46752 + ... + 46811.

It is an arithmetic number, because the mean of its divisors is an integer number (421038).

2^2806890 is an apocalyptic number.

2806890 is an abundant number, since it is smaller than the sum of its proper divisors (3929718).

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

2806890 is a wasteful number, since it uses less digits than its factorization.

2806890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93573.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 2806890 is about 1675.3775693855. The cubic root of 2806890 is about 141.0614892014.

The spelling of 2806890 in words is "two million, eight hundred six thousand, eight hundred ninety".