834145673 has 2 divisors, whose sum is σ = 834145674. Its totient is φ = 834145672.

The previous prime is 834145643. The next prime is 834145679. The reversal of 834145673 is 376541438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 706071184 + 128074489 = 26572^2 + 11317^2 .

It is a cyclic number.

It is not a de Polignac number, because 834145673 - 2²⁸ = 565710217 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 834145673.

It is not a weakly prime, because it can be changed into another prime (834145679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 417072836 + 417072837.

It is an arithmetic number, because the mean of its divisors is an integer number (417072837).

Almost surely, 2^834145673 is an apocalyptic number.

It is an amenable number.

834145673 is a deficient number, since it is larger than the sum of its proper divisors (1).

834145673 is an equidigital number, since it uses as much as digits as its factorization.

834145673 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The square root of 834145673 is about 28881.5801679894. The cubic root of 834145673 is about 941.3417059347.

The spelling of 834145673 in words is "eight hundred thirty-four million, one hundred forty-five thousand, six hundred seventy-three".