434478169 has 2 divisors, whose sum is σ = 434478170. Its totient is φ = 434478168.

The previous prime is 434478167. The next prime is 434478193. The reversal of 434478169 is 961874434.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 375003225 + 59474944 = 19365^2 + 7712^2 .

It is a cyclic number.

It is not a de Polignac number, because 434478169 - 2¹ = 434478167 is a prime.

It is a super-2 number, since 2×434478169² = 377542558675185122, which contains 22 as substring.

Together with 434478167, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (434478167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217239084 + 217239085.

It is an arithmetic number, because the mean of its divisors is an integer number (217239085).

Almost surely, 2^434478169 is an apocalyptic number.

It is an amenable number.

434478169 is a deficient number, since it is larger than the sum of its proper divisors (1).

434478169 is an equidigital number, since it uses as much as digits as its factorization.

434478169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 46.

The square root of 434478169 is about 20844.1399198912. The cubic root of 434478169 is about 757.3953826628.

The spelling of 434478169 in words is "four hundred thirty-four million, four hundred seventy-eight thousand, one hundred sixty-nine".