3603636 has 48 divisors (see below), whose sum is σ = 9513280. Its totient is φ = 1179360.

The previous prime is 3603623. The next prime is 3603659. The reversal of 3603636 is 6363063.

It is a Harshad number since it is a multiple of its sum of digits (27).

3603636 is a modest number, since divided by 3636 gives 360 as remainder.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6315 + ... + 6861.

Almost surely, 2^3603636 is an apocalyptic number.

3603636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3603636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4756640).

3603636 is an abundant number, since it is smaller than the sum of its proper divisors (5909644).

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

3603636 is a wasteful number, since it uses less digits than its factorization.

3603636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 621 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

The square root of 3603636 is about 1898.3245244162. The cubic root of 3603636 is about 153.3134672855.

Adding to 3603636 its reverse (6363063), we get a palindrome (9966699).

The spelling of 3603636 in words is "three million, six hundred three thousand, six hundred thirty-six".