343659 has 4 divisors (see below), whose sum is σ = 458216. Its totient is φ = 229104.

The previous prime is 343649. The next prime is 343661. The reversal of 343659 is 956343.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 956343 = 3 ⋅318781.

It is not a de Polignac number, because 343659 - 2⁵ = 343627 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343659.

It is not an unprimeable number, because it can be changed into a prime (343639) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57274 + ... + 57279.

It is an arithmetic number, because the mean of its divisors is an integer number (114554).

2³⁴³⁶⁵⁹ is an apocalyptic number.

343659 is a deficient number, since it is larger than the sum of its proper divisors (114557).

343659 is a wasteful number, since it uses less digits than its factorization.

343659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114556.

The product of its digits is 9720, while the sum is 30.

The square root of 343659 is about 586.2243597805. The cubic root of 343659 is about 70.0448012523.

The spelling of 343659 in words is "three hundred forty-three thousand, six hundred fifty-nine".