3688906393 has 2 divisors, whose sum is σ = 3688906394. Its totient is φ = 3688906392.

The previous prime is 3688906391. The next prime is 3688906453. The reversal of 3688906393 is 3936098863.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2799256464 + 889649929 = 52908^2 + 29827^2 .

It is a cyclic number.

It is not a de Polignac number, because 3688906393 - 2¹ = 3688906391 is a prime.

Together with 3688906391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (3688906391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844453196 + 1844453197.

It is an arithmetic number, because the mean of its divisors is an integer number (1844453197).

Almost surely, 2^3688906393 is an apocalyptic number.

It is an amenable number.

3688906393 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688906393 is an equidigital number, since it uses as much as digits as its factorization.

3688906393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5038848, while the sum is 55.

The square root of 3688906393 is about 60736.3679602263. The cubic root of 3688906393 is about 1545.1330367248.

The spelling of 3688906393 in words is "three billion, six hundred eighty-eight million, nine hundred six thousand, three hundred ninety-three".