434242657 has 2 divisors, whose sum is σ = 434242658. Its totient is φ = 434242656.

The previous prime is 434242639. The next prime is 434242667. The reversal of 434242657 is 756242434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411116176 + 23126481 = 20276^2 + 4809^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434242657 is a prime.

It is not a weakly prime, because it can be changed into another prime (434242667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217121328 + 217121329.

It is an arithmetic number, because the mean of its divisors is an integer number (217121329).

Almost surely, 2^434242657 is an apocalyptic number.

It is an amenable number.

434242657 is a deficient number, since it is larger than the sum of its proper divisors (1).

434242657 is an equidigital number, since it uses as much as digits as its factorization.

434242657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 37.

The square root of 434242657 is about 20838.4897965280. The cubic root of 434242657 is about 757.2585073997.

The spelling of 434242657 in words is "four hundred thirty-four million, two hundred forty-two thousand, six hundred fifty-seven".