322765 has 4 divisors (see below), whose sum is σ = 387324. Its totient is φ = 258208.

The previous prime is 322757. The next prime is 322769. The reversal of 322765 is 567223.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 567223 = 383 ⋅1481.

It can be written as a sum of positive squares in 2 ways, for example, as 40804 + 281961 = 202^2 + 531^2 .

It is a cyclic number.

It is not a de Polignac number, because 322765 - 2³ = 322757 is a prime.

It is a d-powerful number, because it can be written as 3⁸ + 2⁵ + 7³ + 2¹⁵ + 6⁷ + 5⁵ .

It is a Duffinian number.

322765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322769) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32272 + ... + 32281.

It is an arithmetic number, because the mean of its divisors is an integer number (96831).

2³²²⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

322765 is a deficient number, since it is larger than the sum of its proper divisors (64559).

322765 is an equidigital number, since it uses as much as digits as its factorization.

322765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64558.

The product of its digits is 2520, while the sum is 25.

The square root of 322765 is about 568.1241061599. The cubic root of 322765 is about 68.5954766430.

Adding to 322765 its reverse (567223), we get a palindrome (889988).

The spelling of 322765 in words is "three hundred twenty-two thousand, seven hundred sixty-five".