3957628 has 12 divisors (see below), whose sum is σ = 6940080. Its totient is φ = 1974752.

The previous prime is 3957571. The next prime is 3957637. The reversal of 3957628 is 8267593.

It is a congruent number.

It is an unprimeable number.

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, 2625 + ... + 3847.

It is an arithmetic number, because the mean of its divisors is an integer number (578340).

Almost surely, 2^3957628 is an apocalyptic number.

It is an amenable number.

3957628 is a deficient number, since it is larger than the sum of its proper divisors (2982452).

3957628 is a wasteful number, since it uses less digits than its factorization.

3957628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036 (or 2034 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 3957628 is about 1989.3787975144. The cubic root of 3957628 is about 158.1776029896.

The spelling of 3957628 in words is "three million, nine hundred fifty-seven thousand, six hundred twenty-eight".