3606431209 has 2 divisors, whose sum is σ = 3606431210. Its totient is φ = 3606431208.

The previous prime is 3606431161. The next prime is 3606431219. The reversal of 3606431209 is 9021346063.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1915987984 + 1690443225 = 43772^2 + 41115^2 .

It is a cyclic number.

It is not a de Polignac number, because 3606431209 - 2¹⁵ = 3606398441 is a prime.

It is not a weakly prime, because it can be changed into another prime (3606431219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1803215604 + 1803215605.

It is an arithmetic number, because the mean of its divisors is an integer number (1803215605).

Almost surely, 2^3606431209 is an apocalyptic number.

It is an amenable number.

3606431209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3606431209 is an equidigital number, since it uses as much as digits as its factorization.

3606431209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 34.

The square root of 3606431209 is about 60053.5694942441. The cubic root of 3606431209 is about 1533.5309692898.

The spelling of 3606431209 in words is "three billion, six hundred six million, four hundred thirty-one thousand, two hundred nine".