3693520 has 40 divisors (see below), whose sum is σ = 8675784. Its totient is φ = 1462272.

The previous prime is 3693511. The next prime is 3693563. The reversal of 3693520 is 253963.

3693520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 219024 + 3474496 = 468^2 + 1864^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 10792 + ... + 11128.

Almost surely, 2^3693520 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 3693520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4337892).

3693520 is an abundant number, since it is smaller than the sum of its proper divisors (4982264).

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

3693520 is a wasteful number, since it uses less digits than its factorization.

3693520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487 (or 481 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 28.

The square root of 3693520 is about 1921.8532722349. The cubic root of 3693520 is about 154.5776919224.

The spelling of 3693520 in words is "three million, six hundred ninety-three thousand, five hundred twenty".