3995787 has 4 divisors (see below), whose sum is σ = 5327720. Its totient is φ = 2663856.

The previous prime is 3995779. The next prime is 3995791. The reversal of 3995787 is 7875993.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 3995787 - 2³ = 3995779 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3995777) 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 3 ways as a sum of consecutive naturals, for example, 665962 + ... + 665967.

It is an arithmetic number, because the mean of its divisors is an integer number (1331930).

Almost surely, 2^3995787 is an apocalyptic number.

3995787 is a deficient number, since it is larger than the sum of its proper divisors (1331933).

3995787 is a wasteful number, since it uses less digits than its factorization.

3995787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331932.

The product of its digits is 476280, while the sum is 48.

The square root of 3995787 is about 1998.9464725200. The cubic root of 3995787 is about 158.6843546139.

The spelling of 3995787 in words is "three million, nine hundred ninety-five thousand, seven hundred eighty-seven".