3642734209 has 2 divisors, whose sum is σ = 3642734210. Its totient is φ = 3642734208.

The previous prime is 3642734141. The next prime is 3642734231. The reversal of 3642734209 is 9024372463.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3516845809 + 125888400 = 59303^2 + 11220^2 .

It is a cyclic number.

It is not a de Polignac number, because 3642734209 - 2⁹ = 3642733697 is a prime.

It is not a weakly prime, because it can be changed into another prime (3642734299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1821367104 + 1821367105.

It is an arithmetic number, because the mean of its divisors is an integer number (1821367105).

Almost surely, 2^3642734209 is an apocalyptic number.

It is an amenable number.

3642734209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3642734209 is an equidigital number, since it uses as much as digits as its factorization.

3642734209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 40.

The square root of 3642734209 is about 60355.0677988187. The cubic root of 3642734209 is about 1538.6594012935.

The spelling of 3642734209 in words is "three billion, six hundred forty-two million, seven hundred thirty-four thousand, two hundred nine".