3636216 has 24 divisors (see below), whose sum is σ = 9848280. Its totient is φ = 1212048.

The previous prime is 3636211. The next prime is 3636221. The reversal of 3636216 is 6126363.

3636216 is a `hidden beast` number, since 3 + 636 + 21 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (3636211) and next prime (3636221).

It is a tau number, because it is divible by the number of its divisors (24).

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

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 3636216.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3636211) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 25180 + ... + 25323.

It is an arithmetic number, because the mean of its divisors is an integer number (410345).

Almost surely, 2^3636216 is an apocalyptic number.

3636216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

3636216 is an abundant number, since it is smaller than the sum of its proper divisors (6212064).

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

3636216 is a wasteful number, since it uses less digits than its factorization.

3636216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50515 (or 50508 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 3636216 is about 1906.8864675171. The cubic root of 3636216 is about 153.7741108331.

The spelling of 3636216 in words is "three million, six hundred thirty-six thousand, two hundred sixteen".