343506 has 8 divisors (see below), whose sum is σ = 687024. Its totient is φ = 114500.

The previous prime is 343489. The next prime is 343517. The reversal of 343506 is 605343.

It is a sphenic number, since it is the product of 3 distinct primes.

343506 is an admirable number.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343506.

It is an unprimeable number.

343506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28620 + ... + 28631.

It is an arithmetic number, because the mean of its divisors is an integer number (85878).

2³⁴³⁵⁰⁶ is an apocalyptic number.

343506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343506 is a wasteful number, since it uses less digits than its factorization.

343506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57256.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 343506 is about 586.0938491402. The cubic root of 343506 is about 70.0344048560.

Adding to 343506 its reverse (605343), we get a palindrome (948849).

The spelling of 343506 in words is "three hundred forty-three thousand, five hundred six".