3995906 has 8 divisors (see below), whose sum is σ = 6047244. Its totient is φ = 1980160.

The previous prime is 3995903. The next prime is 3995921. The reversal of 3995906 is 6095993.

It is a happy number.

3995906 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3258025 + 737881 = 1805^2 + 859^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (3995903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8615 + ... + 9066.

Almost surely, 2^3995906 is an apocalyptic number.

3995906 is a deficient number, since it is larger than the sum of its proper divisors (2051338).

3995906 is a wasteful number, since it uses less digits than its factorization.

3995906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17796.

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 3995906 is about 1998.9762379778. The cubic root of 3995906 is about 158.6859298772.

The spelling of 3995906 in words is "three million, nine hundred ninety-five thousand, nine hundred six".