320465 has 8 divisors (see below), whose sum is σ = 388800. Its totient is φ = 253552.

The previous prime is 320449. The next prime is 320471. The reversal of 320465 is 564023.

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

It is a cyclic number.

It is not a de Polignac number, because 320465 - 2⁴ = 320449 is a prime.

It is a plaindrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 320465.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 236 + ... + 834.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2³²⁰⁴⁶⁵ is an apocalyptic number.

It is an amenable number.

320465 is a deficient number, since it is larger than the sum of its proper divisors (68335).

320465 is a wasteful number, since it uses less digits than its factorization.

320465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 320465 is about 566.0962815635. The cubic root of 320465 is about 68.4321526163.

Adding to 320465 its reverse (564023), we get a palindrome (884488).

The spelling of 320465 in words is "three hundred twenty thousand, four hundred sixty-five".