3948928 has 16 divisors (see below), whose sum is σ = 7867260. Its totient is φ = 1974400.

The previous prime is 3948911. The next prime is 3948953. The reversal of 3948928 is 8298493.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15298 + ... + 15553.

Almost surely, 2^3948928 is an apocalyptic number.

It is an amenable number.

3948928 is a deficient number, since it is larger than the sum of its proper divisors (3918332).

3948928 is an equidigital number, since it uses as much as digits as its factorization.

3948928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30865 (or 30853 counting only the distinct ones).

The product of its digits is 124416, while the sum is 43.

The square root of 3948928 is about 1987.1909822662. The cubic root of 3948928 is about 158.0616113935.

The spelling of 3948928 in words is "three million, nine hundred forty-eight thousand, nine hundred twenty-eight".