3947996 has 24 divisors (see below), whose sum is σ = 7766304. Its totient is φ = 1742400.

The previous prime is 3947987. The next prime is 3948071. The reversal of 3947996 is 6997493.

3947996 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3947996.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (323596).

Almost surely, 2^3947996 is an apocalyptic number.

It is an amenable number.

3947996 is a deficient number, since it is larger than the sum of its proper divisors (3818308).

3947996 is a wasteful number, since it uses less digits than its factorization.

3947996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3341 (or 3339 counting only the distinct ones).

The product of its digits is 367416, while the sum is 47.

The square root of 3947996 is about 1986.9564665588. The cubic root of 3947996 is about 158.0491755279.

The spelling of 3947996 in words is "three million, nine hundred forty-seven thousand, nine hundred ninety-six".