3621688 has 24 divisors (see below), whose sum is σ = 7900200. Its totient is φ = 1551984.

The previous prime is 3621661. The next prime is 3621691. The reversal of 3621688 is 8861263.

3621688 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a d-powerful number, because it can be written as 3⁵ + 6⁸ + 2² + 1 + 6⁸ + 8² + 8⁶ .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 4228 + ... + 5011.

It is an arithmetic number, because the mean of its divisors is an integer number (329175).

Almost surely, 2^3621688 is an apocalyptic number.

It is an amenable number.

3621688 is an abundant number, since it is smaller than the sum of its proper divisors (4278512).

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

3621688 is a wasteful number, since it uses less digits than its factorization.

3621688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9259 (or 9248 counting only the distinct ones).

The product of its digits is 13824, while the sum is 34.

The square root of 3621688 is about 1903.0733038956. The cubic root of 3621688 is about 153.5690430596.

The spelling of 3621688 in words is "three million, six hundred twenty-one thousand, six hundred eighty-eight".