3925856 has 48 divisors (see below), whose sum is σ = 8890560. Its totient is φ = 1687680.

The previous prime is 3925843. The next prime is 3925877. The reversal of 3925856 is 6585293.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a d-powerful number, because it can be written as 3¹² + 9³ + 2²⁰ + 5⁸ + 8² + 5⁹ + 6⁴ .

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 7 ways as a sum of consecutive naturals, for example, 6395 + ... + 6981.

It is an arithmetic number, because the mean of its divisors is an integer number (185220).

Almost surely, 2^3925856 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 3925856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4445280).

3925856 is an abundant number, since it is smaller than the sum of its proper divisors (4964704).

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

3925856 is a wasteful number, since it uses less digits than its factorization.

3925856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627 (or 619 counting only the distinct ones).

The product of its digits is 64800, while the sum is 38.

The square root of 3925856 is about 1981.3772987495. The cubic root of 3925856 is about 157.7531797635.

The spelling of 3925856 in words is "three million, nine hundred twenty-five thousand, eight hundred fifty-six".