3993992017 has 4 divisors (see below), whose sum is σ = 3994118656. Its totient is φ = 3993865380.

The previous prime is 3993992011. The next prime is 3993992063. The reversal of 3993992017 is 7102993993.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 7102993993 = 223 ⋅31851991.

It is a cyclic number.

It is not a de Polignac number, because 3993992017 - 2¹⁹ = 3993467729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3993992011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25792 + ... + 93022.

It is an arithmetic number, because the mean of its divisors is an integer number (998529664).

Almost surely, 2^3993992017 is an apocalyptic number.

It is an amenable number.

3993992017 is a deficient number, since it is larger than the sum of its proper divisors (126639).

3993992017 is an equidigital number, since it uses as much as digits as its factorization.

3993992017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126638.

The product of its (nonzero) digits is 826686, while the sum is 52.

The square root of 3993992017 is about 63198.0380787252. The cubic root of 3993992017 is about 1586.6058971843.

The spelling of 3993992017 in words is "three billion, nine hundred ninety-three million, nine hundred ninety-two thousand, seventeen".