304923 has 4 divisors (see below), whose sum is σ = 406568. Its totient is φ = 203280.

The previous prime is 304907. The next prime is 304933. The reversal of 304923 is 329403.

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

It is not a de Polignac number, because 304923 - 2⁴ = 304907 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 304923.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (304903) 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, 50818 + ... + 50823.

It is an arithmetic number, because the mean of its divisors is an integer number (101642).

2³⁰⁴⁹²³ is an apocalyptic number.

304923 is a deficient number, since it is larger than the sum of its proper divisors (101645).

304923 is a wasteful number, since it uses less digits than its factorization.

304923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101644.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 304923 is about 552.1983339345. The cubic root of 304923 is about 67.3074898916.

The spelling of 304923 in words is "three hundred four thousand, nine hundred twenty-three".