3605724 has 36 divisors (see below), whose sum is σ = 9364264. Its totient is φ = 1168992.

The previous prime is 3605711. The next prime is 3605741. The reversal of 3605724 is 4275063.

It is a happy number.

3605724 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 22 + ... + 2685.

Almost surely, 2^3605724 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 3605724, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4682132).

3605724 is an abundant number, since it is smaller than the sum of its proper divisors (5758540).

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

3605724 is a wasteful number, since it uses less digits than its factorization.

3605724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2754 (or 2749 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 3605724 is about 1898.8744034296. The cubic root of 3605724 is about 153.3430722653.

It can be divided in two parts, 360 and 5724, that added together give a square (6084 = 78²).

The spelling of 3605724 in words is "three million, six hundred five thousand, seven hundred twenty-four".