2889009 has 12 divisors (see below), whose sum is σ = 4317300. Its totient is φ = 1859424.

The previous prime is 2889001. The next prime is 2889011. The reversal of 2889009 is 9009882.

It can be written as a sum of positive squares in 2 ways, for example, as 815409 + 2073600 = 903^2 + 1440^2 .

It is not a de Polignac number, because 2889009 - 2³ = 2889001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2889001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5274 + ... + 5795.

It is an arithmetic number, because the mean of its divisors is an integer number (359775).

2^2889009 is an apocalyptic number.

2889009 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2889009 is a deficient number, since it is larger than the sum of its proper divisors (1428291).

2889009 is a wasteful number, since it uses less digits than its factorization.

2889009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11104 (or 11101 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 2889009 is about 1699.7085044207. The cubic root of 2889009 is about 142.4239298515.

The spelling of 2889009 in words is "two million, eight hundred eighty-nine thousand, nine".