3688313 has 2 divisors, whose sum is σ = 3688314. Its totient is φ = 3688312.

The previous prime is 3688309. The next prime is 3688331. The reversal of 3688313 is 3138863.

It is a happy number.

Together with next prime (3688331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2229049 + 1459264 = 1493^2 + 1208^2 .

It is a cyclic number.

It is not a de Polignac number, because 3688313 - 2² = 3688309 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3688313.

It is not a weakly prime, because it can be changed into another prime (3688343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844156 + 1844157.

It is an arithmetic number, because the mean of its divisors is an integer number (1844157).

Almost surely, 2^3688313 is an apocalyptic number.

It is an amenable number.

3688313 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688313 is an equidigital number, since it uses as much as digits as its factorization.

3688313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 32.

The square root of 3688313 is about 1920.4981124698. The cubic root of 3688313 is about 154.5050182874.

The spelling of 3688313 in words is "three million, six hundred eighty-eight thousand, three hundred thirteen".