343889 has 8 divisors (see below), whose sum is σ = 423360. Its totient is φ = 272016.

The previous prime is 343831. The next prime is 343891. The reversal of 343889 is 988343.

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 343889 - 2¹⁶ = 278353 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (343829) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1799 + ... + 1980.

It is an arithmetic number, because the mean of its divisors is an integer number (52920).

2³⁴³⁸⁸⁹ is an apocalyptic number.

It is an amenable number.

343889 is a deficient number, since it is larger than the sum of its proper divisors (79471).

343889 is a wasteful number, since it uses less digits than its factorization.

343889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3799.

The product of its digits is 20736, while the sum is 35.

The square root of 343889 is about 586.4204975954. The cubic root of 343889 is about 70.0604240174.

The spelling of 343889 in words is "three hundred forty-three thousand, eight hundred eighty-nine".