999304 has 16 divisors (see below), whose sum is σ = 1955520. Its totient is φ = 477840.

The previous prime is 999287. The next prime is 999307. The reversal of 999304 is 403999.

It is a self number, because there is not a number n which added to its sum of digits gives 999304.

It is not an unprimeable number, because it can be changed into a prime (999307) by changing a digit.

999304 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2532 + ... + 2899.

It is an arithmetic number, because the mean of its divisors is an integer number (122220).

2⁹⁹⁹³⁰⁴ is an apocalyptic number.

It is an amenable number.

999304 is a deficient number, since it is larger than the sum of its proper divisors (956216).

999304 is a wasteful number, since it uses less digits than its factorization.

999304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5460 (or 5456 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 999304 is about 999.6519394269. The cubic root of 999304 is about 99.9767946155.

The spelling of 999304 in words is "nine hundred ninety-nine thousand, three hundred four".