4047928 has 16 divisors (see below), whose sum is σ = 7733880. Its totient is φ = 1985568.

The previous prime is 4047847. The next prime is 4047929. The reversal of 4047928 is 8297404.

It is a happy number.

4047928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 4047893 and 4047902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4047929) 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 in 3 ways as a sum of consecutive naturals, for example, 4350 + ... + 5197.

Almost surely, 2^4047928 is an apocalyptic number.

It is an amenable number.

4047928 is a deficient number, since it is larger than the sum of its proper divisors (3685952).

4047928 is a wasteful number, since it uses less digits than its factorization.

4047928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9606 (or 9602 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 4047928 is about 2011.9463213515. The cubic root of 4047928 is about 159.3715976718.

The spelling of 4047928 in words is "four million, forty-seven thousand, nine hundred twenty-eight".