3431475209 has 2 divisors, whose sum is σ = 3431475210. Its totient is φ = 3431475208.

The previous prime is 3431475191. The next prime is 3431475239. The reversal of 3431475209 is 9025741343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1941283600 + 1490191609 = 44060^2 + 38603^2 .

It is a cyclic number.

It is not a de Polignac number, because 3431475209 - 2²⁰ = 3430426633 is a prime.

It is not a weakly prime, because it can be changed into another prime (3431475239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1715737604 + 1715737605.

It is an arithmetic number, because the mean of its divisors is an integer number (1715737605).

Almost surely, 2^3431475209 is an apocalyptic number.

It is an amenable number.

3431475209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3431475209 is an equidigital number, since it uses as much as digits as its factorization.

3431475209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 38.

The square root of 3431475209 is about 58578.7948749375. The cubic root of 3431475209 is about 1508.3204589346.

The spelling of 3431475209 in words is "three billion, four hundred thirty-one million, four hundred seventy-five thousand, two hundred nine".