434384917 has 2 divisors, whose sum is σ = 434384918. Its totient is φ = 434384916.

The previous prime is 434384911. The next prime is 434384957. The reversal of 434384917 is 719483434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 434347281 + 37636 = 20841^2 + 194^2 .

It is a cyclic number.

It is not a de Polignac number, because 434384917 - 2⁷ = 434384789 is a prime.

It is a super-2 number, since 2×434384917² = 377380512234193778, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (434384911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217192458 + 217192459.

It is an arithmetic number, because the mean of its divisors is an integer number (217192459).

Almost surely, 2^434384917 is an apocalyptic number.

It is an amenable number.

434384917 is a deficient number, since it is larger than the sum of its proper divisors (1).

434384917 is an equidigital number, since it uses as much as digits as its factorization.

434384917 is an evil number, because the sum of its binary digits is even.

The product of its digits is 290304, while the sum is 43.

The square root of 434384917 is about 20841.9029121623. The cubic root of 434384917 is about 757.3411922240.

The spelling of 434384917 in words is "four hundred thirty-four million, three hundred eighty-four thousand, nine hundred seventeen".