343789 has 4 divisors (see below), whose sum is σ = 346624. Its totient is φ = 340956.

The previous prime is 343787. The next prime is 343799. The reversal of 343789 is 987343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 343789 - 2¹ = 343787 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (343787) 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 3 ways as a sum of consecutive naturals, for example, 1227 + ... + 1480.

It is an arithmetic number, because the mean of its divisors is an integer number (86656).

2³⁴³⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

343789 is a deficient number, since it is larger than the sum of its proper divisors (2835).

343789 is a wasteful number, since it uses less digits than its factorization.

343789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834.

The product of its digits is 18144, while the sum is 34.

The square root of 343789 is about 586.3352283464. The cubic root of 343789 is about 70.0536323670.

The spelling of 343789 in words is "three hundred forty-three thousand, seven hundred eighty-nine".