3995904 has 108 divisors (see below), whose sum is σ = 11961488. Its totient is φ = 1182720.

The previous prime is 3995903. The next prime is 3995921. The reversal of 3995904 is 4095993.

It is a happy number.

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

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 92907 + ... + 92949.

Almost surely, 2^3995904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3995904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5980744).

3995904 is an abundant number, since it is smaller than the sum of its proper divisors (7965584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3995904 is a wasteful number, since it uses less digits than its factorization.

3995904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84 (or 59 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 39.

The square root of 3995904 is about 1998.9757377217. The cubic root of 3995904 is about 158.6859034025.

The spelling of 3995904 in words is "three million, nine hundred ninety-five thousand, nine hundred four".