343983 has 4 divisors (see below), whose sum is σ = 458648. Its totient is φ = 229320.

The previous prime is 343963. The next prime is 343997. The reversal of 343983 is 389343.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 343983 - 2⁵ = 343951 is a prime.

It is a D-number.

It is the 587-th Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343913) by changing a digit.

It is a nontrivial repunit in base 586.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57328 + ... + 57333.

It is an arithmetic number, because the mean of its divisors is an integer number (114662).

2³⁴³⁹⁸³ is an apocalyptic number.

343983 is a deficient number, since it is larger than the sum of its proper divisors (114665).

343983 is a wasteful number, since it uses less digits than its factorization.

343983 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114664.

The product of its digits is 7776, while the sum is 30.

The square root of 343983 is about 586.5006393858. The cubic root of 343983 is about 70.0668069684.

It can be divided in two parts, 343 and 983, that added together give a triangular number (1326 = T₅₁).

The spelling of 343983 in words is "three hundred forty-three thousand, nine hundred eighty-three".