834320261 has 2 divisors, whose sum is σ = 834320262. Its totient is φ = 834320260.

The previous prime is 834320209. The next prime is 834320281. The reversal of 834320261 is 162023438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 698597761 + 135722500 = 26431^2 + 11650^2 .

It is a cyclic number.

It is not a de Polignac number, because 834320261 - 2⁶ = 834320197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (834320281) 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, 417160130 + 417160131.

It is an arithmetic number, because the mean of its divisors is an integer number (417160131).

Almost surely, 2^834320261 is an apocalyptic number.

It is an amenable number.

834320261 is a deficient number, since it is larger than the sum of its proper divisors (1).

834320261 is an equidigital number, since it uses as much as digits as its factorization.

834320261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 834320261 is about 28884.6024899080. The cubic root of 834320261 is about 941.4073761193.

Adding to 834320261 its reverse (162023438), we get a palindrome (996343699).

The spelling of 834320261 in words is "eight hundred thirty-four million, three hundred twenty thousand, two hundred sixty-one".