347834 has 4 divisors (see below), whose sum is σ = 521754. Its totient is φ = 173916.

The previous prime is 347821. The next prime is 347849. The reversal of 347834 is 438743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 438743 = 31 ⋅14153.

It can be written as a sum of positive squares in only one way, i.e., 305809 + 42025 = 553^2 + 205^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 347797 and 347806.

It is an unprimeable 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 as a sum of consecutive naturals, namely, 86957 + ... + 86960.

2³⁴⁷⁸³⁴ is an apocalyptic number.

347834 is a deficient number, since it is larger than the sum of its proper divisors (173920).

347834 is a wasteful number, since it uses less digits than its factorization.

347834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173919.

The product of its digits is 8064, while the sum is 29.

The square root of 347834 is about 589.7745331904. The cubic root of 347834 is about 70.3273106907.

Subtracting 347834 from its reverse (438743), we obtain a palindrome (90909).

The spelling of 347834 in words is "three hundred forty-seven thousand, eight hundred thirty-four".