3693636 has 72 divisors (see below), whose sum is σ = 9959040. Its totient is φ = 1152576.

The previous prime is 3693617. The next prime is 3693637. The reversal of 3693636 is 6363963.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 3693636.

It is not an unprimeable number, because it can be changed into a prime (3693637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62575 + ... + 62633.

It is an arithmetic number, because the mean of its divisors is an integer number (138320).

Almost surely, 2^3693636 is an apocalyptic number.

3693636 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 3693636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4979520).

3693636 is an abundant number, since it is smaller than the sum of its proper divisors (6265404).

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

3693636 is a wasteful number, since it uses less digits than its factorization.

3693636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153 (or 148 counting only the distinct ones).

The product of its digits is 52488, while the sum is 36.

The square root of 3693636 is about 1921.8834512009. The cubic root of 3693636 is about 154.5793101460.

It can be divided in two parts, 369 and 3636, that added together give a triangular number (4005 = T₈₉).

The spelling of 3693636 in words is "three million, six hundred ninety-three thousand, six hundred thirty-six".