834401569 has 2 divisors, whose sum is σ = 834401570. Its totient is φ = 834401568.

The previous prime is 834401563. The next prime is 834401597. The reversal of 834401569 is 965104438.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 500864400 + 333537169 = 22380^2 + 18263^2 .

It is a cyclic number.

It is not a de Polignac number, because 834401569 - 2¹³ = 834393377 is a prime.

It is a super-2 number, since 2×834401569² = 1392451956699323522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (834401563) 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, 417200784 + 417200785.

It is an arithmetic number, because the mean of its divisors is an integer number (417200785).

Almost surely, 2^834401569 is an apocalyptic number.

It is an amenable number.

834401569 is a deficient number, since it is larger than the sum of its proper divisors (1).

834401569 is an equidigital number, since it uses as much as digits as its factorization.

834401569 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 834401569 is about 28886.0099182978. The cubic root of 834401569 is about 941.4379564884.

The spelling of 834401569 in words is "eight hundred thirty-four million, four hundred one thousand, five hundred sixty-nine".