340839211 has 2 divisors, whose sum is σ = 340839212. Its totient is φ = 340839210.

The previous prime is 340839209. The next prime is 340839223. The reversal of 340839211 is 112938043.

It is a weak prime.

It is an emirp because it is prime and its reverse (112938043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340839211 - 2¹ = 340839209 is a prime.

Together with 340839209, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (340839241) 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, 170419605 + 170419606.

It is an arithmetic number, because the mean of its divisors is an integer number (170419606).

Almost surely, 2^340839211 is an apocalyptic number.

340839211 is a deficient number, since it is larger than the sum of its proper divisors (1).

340839211 is an equidigital number, since it uses as much as digits as its factorization.

340839211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 340839211 is about 18461.8311930317. The cubic root of 340839211 is about 698.5269779789.

The spelling of 340839211 in words is "three hundred forty million, eight hundred thirty-nine thousand, two hundred eleven".