2719009 has 2 divisors, whose sum is σ = 2719010. Its totient is φ = 2719008.

The previous prime is 2719001. The next prime is 2719027. The reversal of 2719009 is 9009172.

2719009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2712609 + 6400 = 1647^2 + 80^2 .

It is a cyclic number.

It is not a de Polignac number, because 2719009 - 2³ = 2719001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2719001) by changing a digit.

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 as a sum of consecutive naturals, namely, 1359504 + 1359505.

It is an arithmetic number, because the mean of its divisors is an integer number (1359505).

2^2719009 is an apocalyptic number.

It is an amenable number.

2719009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2719009 is an equidigital number, since it uses as much as digits as its factorization.

2719009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 2719009 is about 1648.9417818710. The cubic root of 2719009 is about 139.5736861430.

The spelling of 2719009 in words is "two million, seven hundred nineteen thousand, nine".