3688040347 has 2 divisors, whose sum is σ = 3688040348. Its totient is φ = 3688040346.

The previous prime is 3688040339. The next prime is 3688040357. The reversal of 3688040347 is 7430408863.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3688040347 - 2³ = 3688040339 is a prime.

It is not a weakly prime, because it can be changed into another prime (3688040357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844020173 + 1844020174.

It is an arithmetic number, because the mean of its divisors is an integer number (1844020174).

Almost surely, 2^3688040347 is an apocalyptic number.

3688040347 is a deficient number, since it is larger than the sum of its proper divisors (1).

3688040347 is an equidigital number, since it uses as much as digits as its factorization.

3688040347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 387072, while the sum is 43.

The square root of 3688040347 is about 60729.2379912674. The cubic root of 3688040347 is about 1545.0121100980.

The spelling of 3688040347 in words is "three billion, six hundred eighty-eight million, forty thousand, three hundred forty-seven".