347009 has 4 divisors (see below), whose sum is σ = 373716. Its totient is φ = 320304.

The previous prime is 347003. The next prime is 347033. The reversal of 347009 is 900743.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 16384 + 330625 = 128^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-347009 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

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 347009.

It is not an unprimeable number, because it can be changed into a prime (347003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13334 + ... + 13359.

It is an arithmetic number, because the mean of its divisors is an integer number (93429).

2³⁴⁷⁰⁰⁹ is an apocalyptic number.

It is an amenable number.

347009 is a deficient number, since it is larger than the sum of its proper divisors (26707).

347009 is a wasteful number, since it uses less digits than its factorization.

347009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26706.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 347009 is about 589.0746981496. The cubic root of 347009 is about 70.2716654089.

The spelling of 347009 in words is "three hundred forty-seven thousand, nine".