3688361 has 2 divisors, whose sum is σ = 3688362. Its totient is φ = 3688360.

The previous prime is 3688357. The next prime is 3688367. The reversal of 3688361 is 1638863.

It is a happy number.

3688361 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3258025 + 430336 = 1805^2 + 656^2 .

It is a cyclic number.

It is not a de Polignac number, because 3688361 - 2² = 3688357 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3688367) 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 as a sum of consecutive naturals, namely, 1844180 + 1844181.

It is an arithmetic number, because the mean of its divisors is an integer number (1844181).

Almost surely, 2^3688361 is an apocalyptic number.

It is an amenable number.

3688361 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688361 is an equidigital number, since it uses as much as digits as its factorization.

3688361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 35.

The square root of 3688361 is about 1920.5106091870. The cubic root of 3688361 is about 154.5056885314.

The spelling of 3688361 in words is "three million, six hundred eighty-eight thousand, three hundred sixty-one".