343906 has 8 divisors (see below), whose sum is σ = 518364. Its totient is φ = 171120.

The previous prime is 343901. The next prime is 343913. The reversal of 343906 is 609343.

It can be written as a sum of positive squares in 2 ways, for example, as 342225 + 1681 = 585^2 + 41^2 .

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

It is not an unprimeable number, because it can be changed into a prime (343901) by changing a digit.

343906 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, 516 + ... + 976.

2³⁴³⁹⁰⁶ is an apocalyptic number.

343906 is a deficient number, since it is larger than the sum of its proper divisors (174458).

343906 is a wasteful number, since it uses less digits than its factorization.

343906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 343906 is about 586.4349921347. The cubic root of 343906 is about 70.0615784671.

The spelling of 343906 in words is "three hundred forty-three thousand, nine hundred six".