343399 has 4 divisors (see below), whose sum is σ = 392464. Its totient is φ = 294336.

The previous prime is 343393. The next prime is 343411. The reversal of 343399 is 993343.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 343399 - 2³ = 343391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 343399.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343399.

It is not an unprimeable number, because it can be changed into a prime (343391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24522 + ... + 24535.

It is an arithmetic number, because the mean of its divisors is an integer number (98116).

2³⁴³³⁹⁹ is an apocalyptic number.

343399 is a deficient number, since it is larger than the sum of its proper divisors (49065).

343399 is an equidigital number, since it uses as much as digits as its factorization.

343399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49064.

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

The square root of 343399 is about 586.0025597214. The cubic root of 343399 is about 70.0271323392.

The spelling of 343399 in words is "three hundred forty-three thousand, three hundred ninety-nine".