343878 has 16 divisors (see below), whose sum is σ = 706800. Its totient is φ = 111456.

The previous prime is 343831. The next prime is 343891. The reversal of 343878 is 878343.

343878 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

343878 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 7 ways as a sum of consecutive naturals, for example, 553 + ... + 996.

It is an arithmetic number, because the mean of its divisors is an integer number (44175).

2³⁴³⁸⁷⁸ is an apocalyptic number.

343878 is an abundant number, since it is smaller than the sum of its proper divisors (362922).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

343878 is a wasteful number, since it uses less digits than its factorization.

343878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its digits is 16128, while the sum is 33.

The square root of 343878 is about 586.4111185849. The cubic root of 343878 is about 70.0596770004.

Adding to 343878 its reverse (878343), we get a palindrome (1222221).

It can be divided in two parts, 343 and 878, that added together give a palindrome (1221).

The spelling of 343878 in words is "three hundred forty-three thousand, eight hundred seventy-eight".