347838 has 8 divisors (see below), whose sum is σ = 695688. Its totient is φ = 115944.

The previous prime is 347821. The next prime is 347849. The reversal of 347838 is 838743.

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

347838 is an admirable number.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 347799 and 347808.

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 347838.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28981 + ... + 28992.

It is an arithmetic number, because the mean of its divisors is an integer number (86961).

2³⁴⁷⁸³⁸ is an apocalyptic number.

347838 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

347838 is a wasteful number, since it uses less digits than its factorization.

347838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57978.

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

The square root of 347838 is about 589.7779243071. Note that the first 3 decimals coincide. The cubic root of 347838 is about 70.3275802716.

The spelling of 347838 in words is "three hundred forty-seven thousand, eight hundred thirty-eight".