2705009 has 2 divisors, whose sum is σ = 2705010. Its totient is φ = 2705008.

The previous prime is 2704997. The next prime is 2705041. The reversal of 2705009 is 9005072.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1488400 + 1216609 = 1220^2 + 1103^2 .

It is a cyclic number.

It is not a de Polignac number, because 2705009 - 2⁴ = 2704993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2705069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1352504 + 1352505.

It is an arithmetic number, because the mean of its divisors is an integer number (1352505).

2^2705009 is an apocalyptic number.

It is an amenable number.

2705009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2705009 is an equidigital number, since it uses as much as digits as its factorization.

2705009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 2705009 is about 1644.6911564181. The cubic root of 2705009 is about 139.3337218816. Note that the first 3 decimals are identical.

The spelling of 2705009 in words is "two million, seven hundred five thousand, nine".