343946393 has 8 divisors (see below), whose sum is σ = 410172288. Its totient is φ = 281993184.

The previous prime is 343946381. The next prime is 343946411. The reversal of 343946393 is 393649343.

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 343946393 - 2⁴ = 343946377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (343946093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1067996 + ... + 1068317.

It is an arithmetic number, because the mean of its divisors is an integer number (51271536).

Almost surely, 2^343946393 is an apocalyptic number.

It is an amenable number.

343946393 is a deficient number, since it is larger than the sum of its proper divisors (66225895).

343946393 is a wasteful number, since it uses less digits than its factorization.

343946393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2136343.

The product of its digits is 629856, while the sum is 44.

The square root of 343946393 is about 18545.7917868178. The cubic root of 343946393 is about 700.6432135471.

The spelling of 343946393 in words is "three hundred forty-three million, nine hundred forty-six thousand, three hundred ninety-three".