3956648 has 32 divisors (see below), whose sum is σ = 8035200. Its totient is φ = 1819392.

The previous prime is 3956647. The next prime is 3956651. The reversal of 3956648 is 8466593.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (3956647) 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 7 ways as a sum of consecutive naturals, for example, 6083 + ... + 6701.

It is an arithmetic number, because the mean of its divisors is an integer number (251100).

Almost surely, 2^3956648 is an apocalyptic number.

It is an amenable number.

3956648 is an abundant number, since it is smaller than the sum of its proper divisors (4078552).

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

3956648 is a wasteful number, since it uses less digits than its factorization.

3956648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689 (or 685 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 3956648 is about 1989.1324742209. The cubic root of 3956648 is about 158.1645457705.

The spelling of 3956648 in words is "three million, nine hundred fifty-six thousand, six hundred forty-eight".