3995805317 has 16 divisors (see below), whose sum is σ = 4849541760. Its totient is φ = 3215987712.

The previous prime is 3995805259. The next prime is 3995805323. The reversal of 3995805317 is 7135085993.

3995805317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-3995805317 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3995807317) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117908 + ... + 147965.

It is an arithmetic number, because the mean of its divisors is an integer number (303096360).

Almost surely, 2^3995805317 is an apocalyptic number.

It is an amenable number.

3995805317 is a deficient number, since it is larger than the sum of its proper divisors (853736443).

3995805317 is a wasteful number, since it uses less digits than its factorization.

3995805317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266012.

The product of its (nonzero) digits is 1020600, while the sum is 50.

The square root of 3995805317 is about 63212.3826239765. The cubic root of 3995805317 is about 1586.8459708733.

The spelling of 3995805317 in words is "three billion, nine hundred ninety-five million, eight hundred five thousand, three hundred seventeen".