3993585745 has 4 divisors (see below), whose sum is σ = 4792302900. Its totient is φ = 3194868592.

The previous prime is 3993585727. The next prime is 3993585751. The reversal of 3993585745 is 5475853993.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5475853993 = 103 ⋅53163631.

It can be written as a sum of positive squares in 2 ways, for example, as 1106028049 + 2887557696 = 33257^2 + 53736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3993585745 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 3993585745.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 399358570 + ... + 399358579.

It is an arithmetic number, because the mean of its divisors is an integer number (1198075725).

Almost surely, 2^3993585745 is an apocalyptic number.

It is an amenable number.

3993585745 is a deficient number, since it is larger than the sum of its proper divisors (798717155).

3993585745 is an equidigital number, since it uses as much as digits as its factorization.

3993585745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798717154.

The product of its digits is 20412000, while the sum is 58.

The square root of 3993585745 is about 63194.8237199852. The cubic root of 3993585745 is about 1586.5520984281.

The spelling of 3993585745 in words is "three billion, nine hundred ninety-three million, five hundred eighty-five thousand, seven hundred forty-five".