434022217 has 2 divisors, whose sum is σ = 434022218. Its totient is φ = 434022216.

The previous prime is 434022163. The next prime is 434022229. The reversal of 434022217 is 712220434.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 412455481 + 21566736 = 20309^2 + 4644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-434022217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 434022191 and 434022200.

It is not a weakly prime, because it can be changed into another prime (434022817) 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, 217011108 + 217011109.

It is an arithmetic number, because the mean of its divisors is an integer number (217011109).

Almost surely, 2^434022217 is an apocalyptic number.

It is an amenable number.

434022217 is a deficient number, since it is larger than the sum of its proper divisors (1).

434022217 is an equidigital number, since it uses as much as digits as its factorization.

434022217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2688, while the sum is 25.

The square root of 434022217 is about 20833.1998742392. The cubic root of 434022217 is about 757.1303468597.

The spelling of 434022217 in words is "four hundred thirty-four million, twenty-two thousand, two hundred seventeen".