834404429 has 2 divisors, whose sum is σ = 834404430. Its totient is φ = 834404428.

The previous prime is 834404359. The next prime is 834404447. The reversal of 834404429 is 924404438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 774341929 + 60062500 = 27827^2 + 7750^2 .

It is a cyclic number.

It is not a de Polignac number, because 834404429 - 2⁸ = 834404173 is a prime.

It is a super-2 number, since 2×834404429² = 1392461502269632082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 834404392 and 834404401.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (834404479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417202214 + 417202215.

It is an arithmetic number, because the mean of its divisors is an integer number (417202215).

Almost surely, 2^834404429 is an apocalyptic number.

It is an amenable number.

834404429 is a deficient number, since it is larger than the sum of its proper divisors (1).

834404429 is an equidigital number, since it uses as much as digits as its factorization.

834404429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 38.

The square root of 834404429 is about 28886.0594231889. The cubic root of 834404429 is about 941.4390321134.

Subtracting 834404429 from its reverse (924404438), we obtain a palindrome (90000009).

The spelling of 834404429 in words is "eight hundred thirty-four million, four hundred four thousand, four hundred twenty-nine".