304347 has 4 divisors (see below), whose sum is σ = 405800. Its totient is φ = 202896.

The previous prime is 304331. The next prime is 304349. The reversal of 304347 is 743403.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 304347 - 2⁴ = 304331 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a plaindrome in base 8.

It is a zygodrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (304349) 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, 50722 + ... + 50727.

It is an arithmetic number, because the mean of its divisors is an integer number (101450).

2³⁰⁴³⁴⁷ is an apocalyptic number.

304347 is a deficient number, since it is larger than the sum of its proper divisors (101453).

304347 is a wasteful number, since it uses less digits than its factorization.

304347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101452.

The product of its (nonzero) digits is 1008, while the sum is 21.

The square root of 304347 is about 551.6765356620. The cubic root of 304347 is about 67.2650818613.

The spelling of 304347 in words is "three hundred four thousand, three hundred forty-seven", and thus it is an iban number.