347923 has 4 divisors (see below), whose sum is σ = 353880. Its totient is φ = 341968.

The previous prime is 347899. The next prime is 347929. The reversal of 347923 is 329743.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 329743 = 199 ⋅1657.

It is a cyclic number.

It is not a de Polignac number, because 347923 - 2⁵ = 347891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 347891 and 347900.

It is not an unprimeable number, because it can be changed into a prime (347929) 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, 2890 + ... + 3007.

It is an arithmetic number, because the mean of its divisors is an integer number (88470).

2³⁴⁷⁹²³ is an apocalyptic number.

347923 is a deficient number, since it is larger than the sum of its proper divisors (5957).

347923 is an equidigital number, since it uses as much as digits as its factorization.

347923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5956.

The product of its digits is 4536, while the sum is 28.

The square root of 347923 is about 589.8499809274. The cubic root of 347923 is about 70.3333083763. Note that the first 4 decimals are identical.

The spelling of 347923 in words is "three hundred forty-seven thousand, nine hundred twenty-three".