8087643871 has 2 divisors, whose sum is σ = 8087643872. Its totient is φ = 8087643870.

The previous prime is 8087643841. The next prime is 8087643913. The reversal of 8087643871 is 1783467808.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8087643871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8087643841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4043821935 + 4043821936.

It is an arithmetic number, because the mean of its divisors is an integer number (4043821936).

Almost surely, 2^8087643871 is an apocalyptic number.

8087643871 is a deficient number, since it is larger than the sum of its proper divisors (1).

8087643871 is an equidigital number, since it uses as much as digits as its factorization.

8087643871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1806336, while the sum is 52.

The square root of 8087643871 is about 89931.3286402464. The cubic root of 8087643871 is about 2007.2771453797.

The spelling of 8087643871 in words is "eight billion, eighty-seven million, six hundred forty-three thousand, eight hundred seventy-one".