434223917 has 2 divisors, whose sum is σ = 434223918. Its totient is φ = 434223916.

The previous prime is 434223901. The next prime is 434223941. The reversal of 434223917 is 719322434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 247464361 + 186759556 = 15731^2 + 13666^2 .

It is a cyclic number.

It is not a de Polignac number, because 434223917 - 2⁴ = 434223901 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434223817) 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, 217111958 + 217111959.

It is an arithmetic number, because the mean of its divisors is an integer number (217111959).

Almost surely, 2^434223917 is an apocalyptic number.

It is an amenable number.

434223917 is a deficient number, since it is larger than the sum of its proper divisors (1).

434223917 is an equidigital number, since it uses as much as digits as its factorization.

434223917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 35.

The square root of 434223917 is about 20838.0401429693. The cubic root of 434223917 is about 757.2476139293.

The spelling of 434223917 in words is "four hundred thirty-four million, two hundred twenty-three thousand, nine hundred seventeen".