343781059 has 2 divisors, whose sum is σ = 343781060. Its totient is φ = 343781058.

The previous prime is 343781047. The next prime is 343781093. The reversal of 343781059 is 950187343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343781059 - 2⁵ = 343781027 is a prime.

It is a super-2 number, since 2×343781059² = 236370833054322962, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343781029) 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, 171890529 + 171890530.

It is an arithmetic number, because the mean of its divisors is an integer number (171890530).

Almost surely, 2^343781059 is an apocalyptic number.

343781059 is a deficient number, since it is larger than the sum of its proper divisors (1).

343781059 is an equidigital number, since it uses as much as digits as its factorization.

343781059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 343781059 is about 18541.3337977612. Note that the first 3 decimals coincide. The cubic root of 343781059 is about 700.5309298562.

The spelling of 343781059 in words is "three hundred forty-three million, seven hundred eighty-one thousand, fifty-nine".