2704909 has 2 divisors, whose sum is σ = 2704910. Its totient is φ = 2704908.

The previous prime is 2704907. The next prime is 2704927. The reversal of 2704909 is 9094072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2673225 + 31684 = 1635^2 + 178^2 .

It is a cyclic number.

It is not a de Polignac number, because 2704909 - 2¹ = 2704907 is a prime.

Together with 2704907, it forms a pair of twin primes.

It is a nialpdrome in base 12.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2704901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352454 + 1352455.

It is an arithmetic number, because the mean of its divisors is an integer number (1352455).

2^2704909 is an apocalyptic number.

It is an amenable number.

2704909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2704909 is an equidigital number, since it uses as much as digits as its factorization.

2704909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 2704909 is about 1644.6607552927. The cubic root of 2704909 is about 139.3320048763.

The spelling of 2704909 in words is "two million, seven hundred four thousand, nine hundred nine".