3813636 has 24 divisors (see below), whose sum is σ = 8948800. Its totient is φ = 1264032.

The previous prime is 3813631. The next prime is 3813643. The reversal of 3813636 is 6363183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3813631) 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, 1590 + ... + 3186.

Almost surely, 2^3813636 is an apocalyptic number.

It is an amenable number.

3813636 is an abundant number, since it is smaller than the sum of its proper divisors (5135164).

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

3813636 is a wasteful number, since it uses less digits than its factorization.

3813636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1803 (or 1801 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 3813636 is about 1952.8532971014. The cubic root of 3813636 is about 156.2355088427.

The spelling of 3813636 in words is "three million, eight hundred thirteen thousand, six hundred thirty-six".