324445393 has 4 divisors (see below), whose sum is σ = 324621040. Its totient is φ = 324269748.

The previous prime is 324445351. The next prime is 324445399. The reversal of 324445393 is 393544423.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 393544423 = 97 ⋅4057159.

It is a cyclic number.

It is not a de Polignac number, because 324445393 - 2²¹ = 322348241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (324445399) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85023 + ... + 88756.

It is an arithmetic number, because the mean of its divisors is an integer number (81155260).

Almost surely, 2^324445393 is an apocalyptic number.

It is an amenable number.

324445393 is a deficient number, since it is larger than the sum of its proper divisors (175647).

324445393 is a wasteful number, since it uses less digits than its factorization.

324445393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175646.

The product of its digits is 155520, while the sum is 37.

The square root of 324445393 is about 18012.3677788346. The cubic root of 324445393 is about 687.1431222387.

The spelling of 324445393 in words is "three hundred twenty-four million, four hundred forty-five thousand, three hundred ninety-three".