343286861 has 2 divisors, whose sum is σ = 343286862. Its totient is φ = 343286860.

The previous prime is 343286849. The next prime is 343286863. The reversal of 343286861 is 168682343.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 342805225 + 481636 = 18515^2 + 694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343286861 is a prime.

Together with 343286863, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343286863) 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, 171643430 + 171643431.

It is an arithmetic number, because the mean of its divisors is an integer number (171643431).

Almost surely, 2^343286861 is an apocalyptic number.

It is an amenable number.

343286861 is a deficient number, since it is larger than the sum of its proper divisors (1).

343286861 is an equidigital number, since it uses as much as digits as its factorization.

343286861 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 165888, while the sum is 41.

The square root of 343286861 is about 18528.0020779360. The cubic root of 343286861 is about 700.1950891612.

The spelling of 343286861 in words is "three hundred forty-three million, two hundred eighty-six thousand, eight hundred sixty-one".