3946728 has 16 divisors (see below), whose sum is σ = 9866880. Its totient is φ = 1315568.

The previous prime is 3946727. The next prime is 3946729. The reversal of 3946728 is 8276493.

3946728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3946727) and next prime (3946729).

It is not an unprimeable number, because it can be changed into a prime (3946721) 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, 82200 + ... + 82247.

It is an arithmetic number, because the mean of its divisors is an integer number (616680).

Almost surely, 2^3946728 is an apocalyptic number.

It is an amenable number.

3946728 is an abundant number, since it is smaller than the sum of its proper divisors (5920152).

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

3946728 is a wasteful number, since it uses less digits than its factorization.

3946728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164456 (or 164452 counting only the distinct ones).

The product of its digits is 72576, while the sum is 39.

The square root of 3946728 is about 1986.6373599628. The cubic root of 3946728 is about 158.0322532030.

The spelling of 3946728 in words is "three million, nine hundred forty-six thousand, seven hundred twenty-eight".