343688 has 8 divisors (see below), whose sum is σ = 644430. Its totient is φ = 171840.

The previous prime is 343687. The next prime is 343709. The reversal of 343688 is 886343.

It can be written as a sum of positive squares in only one way, i.e., 334084 + 9604 = 578^2 + 98^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (343687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21473 + ... + 21488.

2³⁴³⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

343688 is a deficient number, since it is larger than the sum of its proper divisors (300742).

343688 is a wasteful number, since it uses less digits than its factorization.

343688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42967 (or 42963 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 343688 is about 586.2490938159. The cubic root of 343688 is about 70.0467714631.

The spelling of 343688 in words is "three hundred forty-three thousand, six hundred eighty-eight".