13473

13473 is a prime number. It is the 1588th prime number, following 13471 and preceding 13481. The number 13473 is an odd number, as it is not divisible by 2. It cannot be evenly divided by any integer other than 1 and itself. This property defines it as a prime number. Its digits sum to 1+3+4+7+3 = 18, which is divisible by 3 and 9. However, this does not make 13473 itself divisible by 3 or 9, as divisibility rules for primes are more complex. The number 13473 can be expressed as the sum of two squares in a few ways, a property shared by many prime numbers of a certain form. It is not a Mersenne prime, a Fermat prime, or a Sophie Germain prime, which are specific categories of prime numbers with unique properties. In mathematics, prime numbers are fundamental building blocks for integers and play a crucial role in number theory and cryptography.