434043689 has 2 divisors, whose sum is σ = 434043690. Its totient is φ = 434043688.

The previous prime is 434043641. The next prime is 434043697. The reversal of 434043689 is 986340434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 383846464 + 50197225 = 19592^2 + 7085^2 .

It is a cyclic number.

It is not a de Polignac number, because 434043689 - 2⁸ = 434043433 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (434043629) 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, 217021844 + 217021845.

It is an arithmetic number, because the mean of its divisors is an integer number (217021845).

Almost surely, 2^434043689 is an apocalyptic number.

It is an amenable number.

434043689 is a deficient number, since it is larger than the sum of its proper divisors (1).

434043689 is an equidigital number, since it uses as much as digits as its factorization.

434043689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 434043689 is about 20833.7151991670. The cubic root of 434043689 is about 757.1428322687.

The spelling of 434043689 in words is "four hundred thirty-four million, forty-three thousand, six hundred eighty-nine".