343943 has 2 divisors, whose sum is σ = 343944. Its totient is φ = 343942.

The previous prime is 343939. The next prime is 343951. The reversal of 343943 is 349343.

It is a weak prime.

It is an emirp because it is prime and its reverse (349343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343943 - 2² = 343939 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171971 + 171972.

It is an arithmetic number, because the mean of its divisors is an integer number (171972).

2³⁴³⁹⁴³ is an apocalyptic number.

343943 is a deficient number, since it is larger than the sum of its proper divisors (1).

343943 is an equidigital number, since it uses as much as digits as its factorization.

343943 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 26.

The square root of 343943 is about 586.4665378349. The cubic root of 343943 is about 70.0640909612.

The spelling of 343943 in words is "three hundred forty-three thousand, nine hundred forty-three".