3613636 has 12 divisors (see below), whose sum is σ = 6810412. Its totient is φ = 1667808.

The previous prime is 3613633. The next prime is 3613637. The reversal of 3613636 is 6363163.

3613636 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 2 ways, for example, as 2268036 + 1345600 = 1506^2 + 1160^2 .

It is not an unprimeable number, because it can be changed into a prime (3613633) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 34695 + ... + 34798.

Almost surely, 2^3613636 is an apocalyptic number.

It is an amenable number.

3613636 is a deficient number, since it is larger than the sum of its proper divisors (3196776).

3613636 is a wasteful number, since it uses less digits than its factorization.

3613636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69510 (or 69508 counting only the distinct ones).

The product of its digits is 5832, while the sum is 28.

The square root of 3613636 is about 1900.9566012931. The cubic root of 3613636 is about 153.4551499932.

Adding to 3613636 its reverse (6363163), we get a palindrome (9976799).

The spelling of 3613636 in words is "three million, six hundred thirteen thousand, six hundred thirty-six".