343699 has 4 divisors (see below), whose sum is σ = 351736. Its totient is φ = 335664.

The previous prime is 343687. The next prime is 343709. The reversal of 343699 is 996343.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 996343 = 71 ⋅14033.

It is a cyclic number.

It is not a de Polignac number, because 343699 - 2⁵ = 343667 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 343699.

It is not an unprimeable number, because it can be changed into a prime (343639) 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, 3954 + ... + 4039.

It is an arithmetic number, because the mean of its divisors is an integer number (87934).

2³⁴³⁶⁹⁹ is an apocalyptic number.

343699 is a deficient number, since it is larger than the sum of its proper divisors (8037).

343699 is an equidigital number, since it uses as much as digits as its factorization.

343699 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8036.

The product of its digits is 17496, while the sum is 34.

The square root of 343699 is about 586.2584754185. The cubic root of 343699 is about 70.0475187555.

The spelling of 343699 in words is "three hundred forty-three thousand, six hundred ninety-nine".