324213389 has 2 divisors, whose sum is σ = 324213390. Its totient is φ = 324213388.

The previous prime is 324213361. The next prime is 324213403. The reversal of 324213389 is 983312423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 255040900 + 69172489 = 15970^2 + 8317^2 .

It is a cyclic number.

It is not a de Polignac number, because 324213389 - 2⁸ = 324213133 is a prime.

It is a super-2 number, since 2×324213389² = 210228643213730642, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (324213089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162106694 + 162106695.

It is an arithmetic number, because the mean of its divisors is an integer number (162106695).

Almost surely, 2^324213389 is an apocalyptic number.

It is an amenable number.

324213389 is a deficient number, since it is larger than the sum of its proper divisors (1).

324213389 is an equidigital number, since it uses as much as digits as its factorization.

324213389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The square root of 324213389 is about 18005.9264965733. The cubic root of 324213389 is about 686.9792960389.

The spelling of 324213389 in words is "three hundred twenty-four million, two hundred thirteen thousand, three hundred eighty-nine".