3879728 has 10 divisors (see below), whose sum is σ = 7517004. Its totient is φ = 1939856.

The previous prime is 3879727. The next prime is 3879737. The reversal of 3879728 is 8279783.

It is a happy number.

3879728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3879721) 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 as a sum of consecutive naturals, namely, 121226 + ... + 121257.

Almost surely, 2^3879728 is an apocalyptic number.

It is an amenable number.

3879728 is a deficient number, since it is larger than the sum of its proper divisors (3637276).

3879728 is a wasteful number, since it uses less digits than its factorization.

3879728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242491 (or 242485 counting only the distinct ones).

The product of its digits is 169344, while the sum is 44.

The square root of 3879728 is about 1969.7025156099. The cubic root of 3879728 is about 157.1328881515.

The spelling of 3879728 in words is "three million, eight hundred seventy-nine thousand, seven hundred twenty-eight".