343397 has 4 divisors (see below), whose sum is σ = 352716. Its totient is φ = 334080.

The previous prime is 343393. The next prime is 343411. The reversal of 343397 is 793343.

It is a Cunningham number, because it is equal to 586²+1.

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

It can be written as a sum of positive squares in 2 ways, for example, as 306916 + 36481 = 554^2 + 191^2 .

It is a cyclic number.

It is not a de Polignac number, because 343397 - 2² = 343393 is a prime.

It is a Duffinian number.

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 343397.

It is not an unprimeable number, because it can be changed into a prime (343391) 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 3 ways as a sum of consecutive naturals, for example, 4604 + ... + 4677.

It is an arithmetic number, because the mean of its divisors is an integer number (88179).

2³⁴³³⁹⁷ is an apocalyptic number.

343397 is a gapful number since it is divisible by the number (37) formed by its first and last digit.

It is an amenable number.

343397 is a deficient number, since it is larger than the sum of its proper divisors (9319).

343397 is an equidigital number, since it uses as much as digits as its factorization.

343397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9318.

The product of its digits is 6804, while the sum is 29.

The square root of 343397 is about 586.0008532417. Note that the first 3 decimals coincide. The cubic root of 343397 is about 70.0269963899.

The spelling of 343397 in words is "three hundred forty-three thousand, three hundred ninety-seven".