347663 has 4 divisors (see below), whose sum is σ = 352920. Its totient is φ = 342408.

The previous prime is 347651. The next prime is 347671. The reversal of 347663 is 366743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 366743 = 13 ⋅28211.

It is a cyclic number.

It is not a de Polignac number, because 347663 - 2¹⁰ = 346639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347063) 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, 2528 + ... + 2661.

It is an arithmetic number, because the mean of its divisors is an integer number (88230).

2³⁴⁷⁶⁶³ is an apocalyptic number.

347663 is a deficient number, since it is larger than the sum of its proper divisors (5257).

347663 is an equidigital number, since it uses as much as digits as its factorization.

347663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5256.

The product of its digits is 9072, while the sum is 29.

The square root of 347663 is about 589.6295447143. The cubic root of 347663 is about 70.3157841758.

The spelling of 347663 in words is "three hundred forty-seven thousand, six hundred sixty-three".