320099 has 4 divisors (see below), whose sum is σ = 344736. Its totient is φ = 295464.

The previous prime is 320083. The next prime is 320101. The reversal of 320099 is 990023.

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

It is not a de Polignac number, because 320099 - 2⁴ = 320083 is a prime.

It is a Duffinian number.

320099 is a modest number, since divided by 99 gives 32 as remainder.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320099.

It is not an unprimeable number, because it can be changed into a prime (320009) 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, 12299 + ... + 12324.

It is an arithmetic number, because the mean of its divisors is an integer number (86184).

2³²⁰⁰⁹⁹ is an apocalyptic number.

320099 is a deficient number, since it is larger than the sum of its proper divisors (24637).

320099 is a wasteful number, since it uses less digits than its factorization.

320099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24636.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 320099 is about 565.7729226465. The cubic root of 320099 is about 68.4060907906.

It can be divided in two parts, 3 and 20099, that added together give a palindrome (20102).

The spelling of 320099 in words is "three hundred twenty thousand, ninety-nine".