324820993 has 4 divisors (see below), whose sum is σ = 371224000. Its totient is φ = 278417988.

The previous prime is 324820963. The next prime is 324820999. The reversal of 324820993 is 399028423.

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.

It is a cyclic number.

It is not a de Polignac number, because 324820993 - 2¹³ = 324812801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (324820999) 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, 23201493 + ... + 23201506.

It is an arithmetic number, because the mean of its divisors is an integer number (92806000).

Almost surely, 2^324820993 is an apocalyptic number.

It is an amenable number.

324820993 is a deficient number, since it is larger than the sum of its proper divisors (46403007).

324820993 is an equidigital number, since it uses as much as digits as its factorization.

324820993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46403006.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 324820993 is about 18022.7909325942. The cubic root of 324820993 is about 687.4081811482.

The spelling of 324820993 in words is "three hundred twenty-four million, eight hundred twenty thousand, nine hundred ninety-three".