343993 has 8 divisors (see below), whose sum is σ = 379008. Its totient is φ = 310224.

The previous prime is 343963. The next prime is 343997. The reversal of 343993 is 399343.

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

It is a cyclic number.

It is not a de Polignac number, because 343993 - 2⁹ = 343481 is a prime.

It is not an unprimeable number, because it can be changed into a prime (343997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330 + ... + 892.

It is an arithmetic number, because the mean of its divisors is an integer number (47376).

2³⁴³⁹⁹³ is an apocalyptic number.

It is an amenable number.

343993 is a deficient number, since it is larger than the sum of its proper divisors (35015).

343993 is a wasteful number, since it uses less digits than its factorization.

343993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 623.

The product of its digits is 8748, while the sum is 31.

The square root of 343993 is about 586.5091644638. The cubic root of 343993 is about 70.0674859373.

The spelling of 343993 in words is "three hundred forty-three thousand, nine hundred ninety-three".