3925506 has 32 divisors (see below), whose sum is σ = 8608320. Its totient is φ = 1185984.

The previous prime is 3925489. The next prime is 3925541. The reversal of 3925506 is 6055293.

3925506 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 4176 + ... + 5028.

It is an arithmetic number, because the mean of its divisors is an integer number (269010).

Almost surely, 2^3925506 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3925506, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4304160).

3925506 is an abundant number, since it is smaller than the sum of its proper divisors (4682814).

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

3925506 is a wasteful number, since it uses less digits than its factorization.

3925506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930.

The product of its (nonzero) digits is 8100, while the sum is 30.

The square root of 3925506 is about 1981.2889743801. The cubic root of 3925506 is about 157.7484915924.

The spelling of 3925506 in words is "three million, nine hundred twenty-five thousand, five hundred six".