3631216 has 20 divisors (see below), whose sum is σ = 7263424. Its totient is φ = 1756800.

The previous prime is 3631213. The next prime is 3631219. The reversal of 3631216 is 6121363.

3631216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3631213) and next prime (3631219).

3631216 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3631211) 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, 3165 + ... + 4156.

Almost surely, 2^3631216 is an apocalyptic number.

It is an amenable number.

3631216 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3631216 is a wasteful number, since it uses less digits than its factorization.

3631216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7360 (or 7354 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

The square root of 3631216 is about 1905.5749788450. The cubic root of 3631216 is about 153.7035958401.

Adding to 3631216 its reverse (6121363), we get a palindrome (9752579).

The spelling of 3631216 in words is "three million, six hundred thirty-one thousand, two hundred sixteen".