347823 has 12 divisors (see below), whose sum is σ = 574288. Its totient is φ = 198720.

The previous prime is 347821. The next prime is 347849. The reversal of 347823 is 328743.

It is not a de Polignac number, because 347823 - 2¹ = 347821 is a prime.

It is a d-powerful number, because it can be written as 3⁹ + 4³ + 8³ + 7⁶ + 2¹⁵ + 3¹¹ .

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (347821) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2698 + ... + 2823.

2³⁴⁷⁸²³ is an apocalyptic number.

347823 is a deficient number, since it is larger than the sum of its proper divisors (226465).

347823 is a wasteful number, since it uses less digits than its factorization.

347823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5534 (or 5531 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 347823 is about 589.7652075191. The cubic root of 347823 is about 70.3265693327.

The spelling of 347823 in words is "three hundred forty-seven thousand, eight hundred twenty-three".