320069 has 4 divisors (see below), whose sum is σ = 323340. Its totient is φ = 316800.

The previous prime is 320063. The next prime is 320081. The reversal of 320069 is 960023.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 960023 = 73 ⋅13151.

It can be written as a sum of positive squares in 2 ways, for example, as 289444 + 30625 = 538^2 + 175^2 .

It is a cyclic number.

It is not a de Polignac number, because 320069 - 2⁴ = 320053 is a prime.

It is a super-2 number, since 2×320069² = 204888329522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 320069.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320069.

It is not an unprimeable number, because it can be changed into a prime (320063) 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, 1484 + ... + 1685.

It is an arithmetic number, because the mean of its divisors is an integer number (80835).

2³²⁰⁰⁶⁹ is an apocalyptic number.

It is an amenable number.

320069 is a deficient number, since it is larger than the sum of its proper divisors (3271).

320069 is a wasteful number, since it uses less digits than its factorization.

320069 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 320069 is about 565.7464096218. The cubic root of 320069 is about 68.4039536946.

The spelling of 320069 in words is "three hundred twenty thousand, sixty-nine".