2738306209 has 2 divisors, whose sum is σ = 2738306210. Its totient is φ = 2738306208.

The previous prime is 2738306189. The next prime is 2738306227. The reversal of 2738306209 is 9026038372.

2738306209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2084379025 + 653927184 = 45655^2 + 25572^2 .

It is a cyclic number.

It is not a de Polignac number, because 2738306209 - 2⁹ = 2738305697 is a prime.

It is not a weakly prime, because it can be changed into another prime (2738300209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1369153104 + 1369153105.

It is an arithmetic number, because the mean of its divisors is an integer number (1369153105).

Almost surely, 2^2738306209 is an apocalyptic number.

It is an amenable number.

2738306209 is a deficient number, since it is larger than the sum of its proper divisors (1).

2738306209 is an equidigital number, since it uses as much as digits as its factorization.

2738306209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 2738306209 is about 52328.8277051952. The cubic root of 2738306209 is about 1399.0309976624.

The spelling of 2738306209 in words is "two billion, seven hundred thirty-eight million, three hundred six thousand, two hundred nine".