3959928 has 112 divisors (see below), whose sum is σ = 12853680. Its totient is φ = 1119744.

The previous prime is 3959911. The next prime is 3959947. The reversal of 3959928 is 8299593.

3959928 is a `hidden beast` number, since 39 + 599 + 28 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 40776 + ... + 40872.

It is an arithmetic number, because the mean of its divisors is an integer number (114765).

Almost surely, 2^3959928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3959928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6426840).

3959928 is an abundant number, since it is smaller than the sum of its proper divisors (8893752).

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

3959928 is an equidigital number, since it uses as much as digits as its factorization.

3959928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 109 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 3959928 is about 1989.9567834503. The cubic root of 3959928 is about 158.2082390199.

The spelling of 3959928 in words is "three million, nine hundred fifty-nine thousand, nine hundred twenty-eight".