322813 has 6 divisors (see below), whose sum is σ = 343226. Its totient is φ = 303552.

The previous prime is 322807. The next prime is 322849. The reversal of 322813 is 318223.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 49284 + 273529 = 222^2 + 523^2 .

It is not a de Polignac number, because 322813 - 2⁵ = 322781 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (322013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270 + ... + 847.

2³²²⁸¹³ is an apocalyptic number.

It is an amenable number.

322813 is a deficient number, since it is larger than the sum of its proper divisors (20413).

322813 is a wasteful number, since it uses less digits than its factorization.

322813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1151 (or 1134 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 322813 is about 568.1663488803. The cubic root of 322813 is about 68.5988768668.

The spelling of 322813 in words is "three hundred twenty-two thousand, eight hundred thirteen".