323641 has 2 divisors, whose sum is σ = 323642. Its totient is φ = 323640.

The previous prime is 323623. The next prime is 323647. The reversal of 323641 is 146323.

323641 = T₄₆₃ + T₄₆₄ + T₄₆₅.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291600 + 32041 = 540^2 + 179^2 .

It is an emirp because it is prime and its reverse (146323) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 323641 - 2¹¹ = 321593 is a prime.

It is a Chen prime.

323641 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (323647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161820 + 161821.

It is an arithmetic number, because the mean of its divisors is an integer number (161821).

2³²³⁶⁴¹ is an apocalyptic number.

323641 is the 465-th centered triangular number.

It is an amenable number.

323641 is a deficient number, since it is larger than the sum of its proper divisors (1).

323641 is an equidigital number, since it uses as much as digits as its factorization.

323641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 19.

The square root of 323641 is about 568.8945420726. The cubic root of 323641 is about 68.6574777453.

Adding to 323641 its reverse (146323), we get a palindrome (469964).

The spelling of 323641 in words is "three hundred twenty-three thousand, six hundred forty-one".