2889808 has 20 divisors (see below), whose sum is σ = 5653780. Its totient is φ = 1430784.

The previous prime is 2889797. The next prime is 2889823. The reversal of 2889808 is 8089882.

It can be written as a sum of positive squares in 2 ways, for example, as 1468944 + 1420864 = 1212^2 + 1192^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 916 + ... + 2572.

It is an arithmetic number, because the mean of its divisors is an integer number (282689).

2^2889808 is an apocalyptic number.

It is an amenable number.

2889808 is a deficient number, since it is larger than the sum of its proper divisors (2763972).

2889808 is a wasteful number, since it uses less digits than its factorization.

2889808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1768 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 43.

The square root of 2889808 is about 1699.9435284738. The cubic root of 2889808 is about 142.4370584861.

The spelling of 2889808 in words is "two million, eight hundred eighty-nine thousand, eight hundred eight".