434103209 has 2 divisors, whose sum is σ = 434103210. Its totient is φ = 434103208.

The previous prime is 434103181. The next prime is 434103217. The reversal of 434103209 is 902301434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 308775184 + 125328025 = 17572^2 + 11195^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434103209 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (434103259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217051604 + 217051605.

It is an arithmetic number, because the mean of its divisors is an integer number (217051605).

Almost surely, 2^434103209 is an apocalyptic number.

It is an amenable number.

434103209 is a deficient number, since it is larger than the sum of its proper divisors (1).

434103209 is an equidigital number, since it uses as much as digits as its factorization.

434103209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 434103209 is about 20835.1436040167. The cubic root of 434103209 is about 757.1774394467.

The spelling of 434103209 in words is "four hundred thirty-four million, one hundred three thousand, two hundred nine".