3840538747 has 2 divisors, whose sum is σ = 3840538748. Its totient is φ = 3840538746.

The previous prime is 3840538739. The next prime is 3840538763. The reversal of 3840538747 is 7478350483.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (7478350483) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3840538747 - 2³ = 3840538739 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3840538747.

It is not a weakly prime, because it can be changed into another prime (3840538717) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1920269373 + 1920269374.

It is an arithmetic number, because the mean of its divisors is an integer number (1920269374).

Almost surely, 2^3840538747 is an apocalyptic number.

3840538747 is a deficient number, since it is larger than the sum of its proper divisors (1).

3840538747 is an equidigital number, since it uses as much as digits as its factorization.

3840538747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2257920, while the sum is 49.

The square root of 3840538747 is about 61972.0803830241. The cubic root of 3840538747 is about 1566.0202864873.

The spelling of 3840538747 in words is "three billion, eight hundred forty million, five hundred thirty-eight thousand, seven hundred forty-seven".