347687 has 8 divisors (see below), whose sum is σ = 362880. Its totient is φ = 332920.

The previous prime is 347671. The next prime is 347707. The reversal of 347687 is 786743.

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

It is a cyclic number.

It is not a de Polignac number, because 347687 - 2⁴ = 347671 is a prime.

It is a Duffinian 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 347687.

It is not an unprimeable number, because it can be changed into a prime (347287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4148 + ... + 4230.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2³⁴⁷⁶⁸⁷ is an apocalyptic number.

347687 is a deficient number, since it is larger than the sum of its proper divisors (15193).

347687 is an equidigital number, since it uses as much as digits as its factorization.

347687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its digits is 28224, while the sum is 35.

The square root of 347687 is about 589.6498961248. The cubic root of 347687 is about 70.3174021603.

The spelling of 347687 in words is "three hundred forty-seven thousand, six hundred eighty-seven".