2732209 has 2 divisors, whose sum is σ = 2732210. Its totient is φ = 2732208.

The previous prime is 2732207. The next prime is 2732221. The reversal of 2732209 is 9022372.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2712609 + 19600 = 1647^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2732209 - 2¹ = 2732207 is a prime.

Together with 2732207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2732201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1366104 + 1366105.

It is an arithmetic number, because the mean of its divisors is an integer number (1366105).

2^2732209 is an apocalyptic number.

It is an amenable number.

2732209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2732209 is an equidigital number, since it uses as much as digits as its factorization.

2732209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 2732209 is about 1652.9395028252. The cubic root of 2732209 is about 139.7991848789.

The spelling of 2732209 in words is "two million, seven hundred thirty-two thousand, two hundred nine".