2887009 has 2 divisors, whose sum is σ = 2887010. Its totient is φ = 2887008.

The previous prime is 2887007. The next prime is 2887019. The reversal of 2887009 is 9007882.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2608225 + 278784 = 1615^2 + 528^2 .

It is a cyclic number.

It is not a de Polignac number, because 2887009 - 2¹ = 2887007 is a prime.

Together with 2887007, it forms a pair of twin primes.

2887009 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (2887007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1443504 + 1443505.

It is an arithmetic number, because the mean of its divisors is an integer number (1443505).

2^2887009 is an apocalyptic number.

It is an amenable number.

2887009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2887009 is an equidigital number, since it uses as much as digits as its factorization.

2887009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 2887009 is about 1699.1200663873. The cubic root of 2887009 is about 142.3910565702.

The spelling of 2887009 in words is "two million, eight hundred eighty-seven thousand, nine".