343103819 has 2 divisors, whose sum is σ = 343103820. Its totient is φ = 343103818.

The previous prime is 343103797. The next prime is 343103863. The reversal of 343103819 is 918301343.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-343103819 is a prime.

It is a super-2 number, since 2×343103819² = 235440461224769522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343103899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171551909 + 171551910.

It is an arithmetic number, because the mean of its divisors is an integer number (171551910).

Almost surely, 2^343103819 is an apocalyptic number.

343103819 is a deficient number, since it is larger than the sum of its proper divisors (1).

343103819 is an equidigital number, since it uses as much as digits as its factorization.

343103819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 343103819 is about 18523.0618149376. The cubic root of 343103819 is about 700.0706180457.

The spelling of 343103819 in words is "three hundred forty-three million, one hundred three thousand, eight hundred nineteen".