It is a sphenic number, since it is the product of 3 distinct primes.
It is a de Polignac number, because none of the positive numbers 2k-347665 is a prime.
It is a Duffinian number.
It is an unprimeable number.
2347665 is an apocalyptic number.
It is an amenable number.
347665 is a wasteful number, since it uses less digits than its factorization.
347665 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 2279.
The square root of 347665 is about 589.6312406920. The cubic root of 347665 is about 70.3159190107.
The spelling of 347665 in words is "three hundred forty-seven thousand, six hundred sixty-five".