434673749 has 2 divisors, whose sum is σ = 434673750. Its totient is φ = 434673748.

The previous prime is 434673703. The next prime is 434673751. The reversal of 434673749 is 947376434.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 336465649 + 98208100 = 18343^2 + 9910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434673749 is a prime.

Together with 434673751, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434673769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217336874 + 217336875.

It is an arithmetic number, because the mean of its divisors is an integer number (217336875).

Almost surely, 2^434673749 is an apocalyptic number.

It is an amenable number.

434673749 is a deficient number, since it is larger than the sum of its proper divisors (1).

434673749 is an equidigital number, since it uses as much as digits as its factorization.

434673749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 47.

The square root of 434673749 is about 20848.8308784929. The cubic root of 434673749 is about 757.5090125894.

The spelling of 434673749 in words is "four hundred thirty-four million, six hundred seventy-three thousand, seven hundred forty-nine".