343834861 has 2 divisors, whose sum is σ = 343834862. Its totient is φ = 343834860.

The previous prime is 343834819. The next prime is 343834873. The reversal of 343834861 is 168438343.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176624100 + 167210761 = 13290^2 + 12931^2 .

It is an emirp because it is prime and its reverse (168438343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343834861 - 2⁹ = 343834349 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343834801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171917430 + 171917431.

It is an arithmetic number, because the mean of its divisors is an integer number (171917431).

Almost surely, 2^343834861 is an apocalyptic number.

It is an amenable number.

343834861 is a deficient number, since it is larger than the sum of its proper divisors (1).

343834861 is an equidigital number, since it uses as much as digits as its factorization.

343834861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 40.

The square root of 343834861 is about 18542.7846074963. The cubic root of 343834861 is about 700.5674724930.

The spelling of 343834861 in words is "three hundred forty-three million, eight hundred thirty-four thousand, eight hundred sixty-one".