323391 has 12 divisors (see below), whose sum is σ = 459272. Its totient is φ = 202368.

The previous prime is 323383. The next prime is 323413. The reversal of 323391 is 193323.

It is not a de Polignac number, because 323391 - 2³ = 323383 is a prime.

323391 is a lucky number.

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 323391.

It is not an unprimeable number, because it can be changed into a prime (323341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 681 + ... + 1053.

2³²³³⁹¹ is an apocalyptic number.

323391 is a deficient number, since it is larger than the sum of its proper divisors (135881).

323391 is a wasteful number, since it uses less digits than its factorization.

323391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410 (or 393 counting only the distinct ones).

The product of its digits is 486, while the sum is 21.

The square root of 323391 is about 568.6747752450. The cubic root of 323391 is about 68.6397947870.

The spelling of 323391 in words is "three hundred twenty-three thousand, three hundred ninety-one".