3681535 has 32 divisors (see below), whose sum is σ = 5483520. Its totient is φ = 2332800.

The previous prime is 3681527. The next prime is 3681553. The reversal of 3681535 is 5351863.

It is not a de Polignac number, because 3681535 - 2³ = 3681527 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 3681497 and 3681506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13450 + ... + 13720.

It is an arithmetic number, because the mean of its divisors is an integer number (171360).

Almost surely, 2^3681535 is an apocalyptic number.

3681535 is a deficient number, since it is larger than the sum of its proper divisors (1801985).

3681535 is a wasteful number, since it uses less digits than its factorization.

3681535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319.

The product of its digits is 10800, while the sum is 31.

The square root of 3681535 is about 1918.7326546447. The cubic root of 3681535 is about 154.4103158070.

The spelling of 3681535 in words is "three million, six hundred eighty-one thousand, five hundred thirty-five".