3631836 has 48 divisors (see below), whose sum is σ = 9433088. Its totient is φ = 1080000.

The previous prime is 3631813. The next prime is 3631841. The reversal of 3631836 is 6381363.

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, 4461 + ... + 5211.

Almost surely, 2^3631836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3631836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4716544).

3631836 is an abundant number, since it is smaller than the sum of its proper divisors (5801252).

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

3631836 is a wasteful number, since it uses less digits than its factorization.

3631836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 802 (or 800 counting only the distinct ones).

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

The square root of 3631836 is about 1905.7376524590. The cubic root of 3631836 is about 153.7123432135.

The spelling of 3631836 in words is "three million, six hundred thirty-one thousand, eight hundred thirty-six".