3923648 has 28 divisors (see below), whose sum is σ = 7876032. Its totient is φ = 1939200.

The previous prime is 3923641. The next prime is 3923653. The reversal of 3923648 is 8463293.

It is a happy number.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3923641) 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, 6161 + ... + 6767.

Almost surely, 2^3923648 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 3923648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3938016).

3923648 is an abundant number, since it is smaller than the sum of its proper divisors (3952384).

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

3923648 is a wasteful number, since it uses less digits than its factorization.

3923648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720 (or 710 counting only the distinct ones).

The product of its digits is 31104, while the sum is 35.

The square root of 3923648 is about 1980.8200322089. The cubic root of 3923648 is about 157.7235994340.

The spelling of 3923648 in words is "three million, nine hundred twenty-three thousand, six hundred forty-eight".