304863 has 8 divisors (see below), whose sum is σ = 437808. Its totient is φ = 187584.

The previous prime is 304849. The next prime is 304867. The reversal of 304863 is 368403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 304863 - 2⁴ = 304847 is a prime.

304863 is a lucky number.

It is a plaindrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3870 + ... + 3947.

It is an arithmetic number, because the mean of its divisors is an integer number (54726).

2³⁰⁴⁸⁶³ is an apocalyptic number.

304863 is a deficient number, since it is larger than the sum of its proper divisors (132945).

304863 is a wasteful number, since it uses less digits than its factorization.

304863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7833.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 304863 is about 552.1440029558. The cubic root of 304863 is about 67.3030748816.

The spelling of 304863 in words is "three hundred four thousand, eight hundred sixty-three".