3705856 has 88 divisors (see below), whose sum is σ = 9432576. Its totient is φ = 1413120.

The previous prime is 3705853. The next prime is 3705887. The reversal of 3705856 is 6585073.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (88).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3705851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78825 + ... + 78871.

Almost surely, 2^3705856 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 3705856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4716288).

3705856 is an abundant number, since it is smaller than the sum of its proper divisors (5726720).

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

3705856 is a wasteful number, since it uses less digits than its factorization.

3705856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85 (or 67 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 3705856 is about 1925.0599990650. The cubic root of 3705856 is about 154.7495922069.

It can be divided in two parts, 370 and 5856, that added together give a palindrome (6226).

The spelling of 3705856 in words is "three million, seven hundred five thousand, eight hundred fifty-six".