3840872687 has 2 divisors, whose sum is σ = 3840872688. Its totient is φ = 3840872686.

The previous prime is 3840872663. The next prime is 3840872701. The reversal of 3840872687 is 7862780483.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3840872687 - 2¹⁰ = 3840871663 is a prime.

It is a super-3 number, since 3×3840872687³ (a number of 30 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3840872647) 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, 1920436343 + 1920436344.

It is an arithmetic number, because the mean of its divisors is an integer number (1920436344).

Almost surely, 2^3840872687 is an apocalyptic number.

3840872687 is a deficient number, since it is larger than the sum of its proper divisors (1).

3840872687 is an equidigital number, since it uses as much as digits as its factorization.

3840872687 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3612672, while the sum is 53.

The square root of 3840872687 is about 61974.7746022525. The cubic root of 3840872687 is about 1566.0656743606.

The spelling of 3840872687 in words is "three billion, eight hundred forty million, eight hundred seventy-two thousand, six hundred eighty-seven".