3688193 has 2 divisors, whose sum is σ = 3688194. Its totient is φ = 3688192.

The previous prime is 3688189. The next prime is 3688199. The reversal of 3688193 is 3918863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3214849 + 473344 = 1793^2 + 688^2 .

It is a cyclic number.

It is not a de Polignac number, because 3688193 - 2² = 3688189 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (3688199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844096 + 1844097.

It is an arithmetic number, because the mean of its divisors is an integer number (1844097).

Almost surely, 2^3688193 is an apocalyptic number.

It is an amenable number.

3688193 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688193 is an equidigital number, since it uses as much as digits as its factorization.

3688193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 3688193 is about 1920.4668703209. The cubic root of 3688193 is about 154.5033426521.

The spelling of 3688193 in words is "three million, six hundred eighty-eight thousand, one hundred ninety-three".