343864 has 16 divisors (see below), whose sum is σ = 657720. Its totient is φ = 168480.

The previous prime is 343831. The next prime is 343891. The reversal of 343864 is 468343.

343864 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

343864 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, 19 + ... + 829.

2³⁴³⁸⁶⁴ is an apocalyptic number.

It is an amenable number.

343864 is a deficient number, since it is larger than the sum of its proper divisors (313856).

343864 is a wasteful number, since it uses less digits than its factorization.

343864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 870 (or 866 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 343864 is about 586.3991814455. The cubic root of 343864 is about 70.0587262283.

The spelling of 343864 in words is "three hundred forty-three thousand, eight hundred sixty-four".