324087993 has 16 divisors (see below), whose sum is σ = 482912640. Its totient is φ = 214806672.

The previous prime is 324087991. The next prime is 324088001. The reversal of 324087993 is 399780423.

It is a happy number.

It is not a de Polignac number, because 324087993 - 2¹ = 324087991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (324087991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30021 + ... + 39362.

It is an arithmetic number, because the mean of its divisors is an integer number (30182040).

Almost surely, 2^324087993 is an apocalyptic number.

It is an amenable number.

324087993 is a deficient number, since it is larger than the sum of its proper divisors (158824647).

324087993 is a wasteful number, since it uses less digits than its factorization.

324087993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69565 (or 69559 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The square root of 324087993 is about 18002.4440840681. Note that the first 3 decimals coincide. The cubic root of 324087993 is about 686.8907169660.

It can be divided in two parts, 32408 and 7993, that added together give a square (40401 = 201²).

The spelling of 324087993 in words is "three hundred twenty-four million, eighty-seven thousand, nine hundred ninety-three".