3995995993 has 4 divisors (see below), whose sum is σ = 4359268368. Its totient is φ = 3632723620.

The previous prime is 3995995987. The next prime is 3995996009.

3995995993 is nontrivially palindromic in base 10.

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 3995995993 - 2⁵ = 3995995961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3995995903) 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, 181636171 + ... + 181636192.

It is an arithmetic number, because the mean of its divisors is an integer number (1089817092).

Almost surely, 2^3995995993 is an apocalyptic number.

It is an amenable number.

3995995993 is a deficient number, since it is larger than the sum of its proper divisors (363272375).

3995995993 is a wasteful number, since it uses less digits than its factorization.

3995995993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363272374.

The product of its digits is 119574225, while the sum is 70.

The square root of 3995995993 is about 63213.8908231411. The cubic root of 3995995993 is about 1586.8712113947.

The spelling of 3995995993 in words is "three billion, nine hundred ninety-five million, nine hundred ninety-five thousand, nine hundred ninety-three".