343678 has 8 divisors (see below), whose sum is σ = 518472. Its totient is φ = 170856.

The previous prime is 343667. The next prime is 343687. The reversal of 343678 is 876343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×343678² = 236229135368, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

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 343678.

It is an unprimeable number.

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, 76 + ... + 832.

It is an arithmetic number, because the mean of its divisors is an integer number (64809).

2³⁴³⁶⁷⁸ is an apocalyptic number.

343678 is a deficient number, since it is larger than the sum of its proper divisors (174794).

343678 is a wasteful number, since it uses less digits than its factorization.

343678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its digits is 12096, while the sum is 31.

The square root of 343678 is about 586.2405649561. The cubic root of 343678 is about 70.0460920926.

It can be divided in two parts, 3 and 43678, that added together give a square (43681 = 209²).

The spelling of 343678 in words is "three hundred forty-three thousand, six hundred seventy-eight".