434572109 has 2 divisors, whose sum is σ = 434572110. Its totient is φ = 434572108.

The previous prime is 434572093. The next prime is 434572129. The reversal of 434572109 is 901275434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 399880009 + 34692100 = 19997^2 + 5890^2 .

It is a cyclic number.

It is not a de Polignac number, because 434572109 - 2⁴ = 434572093 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434572129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217286054 + 217286055.

It is an arithmetic number, because the mean of its divisors is an integer number (217286055).

Almost surely, 2^434572109 is an apocalyptic number.

It is an amenable number.

434572109 is a deficient number, since it is larger than the sum of its proper divisors (1).

434572109 is an equidigital number, since it uses as much as digits as its factorization.

434572109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 434572109 is about 20846.3931892306. The cubic root of 434572109 is about 757.4499650715.

The spelling of 434572109 in words is "four hundred thirty-four million, five hundred seventy-two thousand, one hundred nine".