8047871986 has 32 divisors (see below), whose sum is σ = 15054740352. Its totient is φ = 3134664960.

The previous prime is 8047871981. The next prime is 8047871987. The reversal of 8047871986 is 6891787408.

It is a self number, because there is not a number n which added to its sum of digits gives 8047871986.

It is not an unprimeable number, because it can be changed into a prime (8047871981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1033620 + ... + 1041376.

It is an arithmetic number, because the mean of its divisors is an integer number (470460636).

Almost surely, 2^8047871986 is an apocalyptic number.

8047871986 is a deficient number, since it is larger than the sum of its proper divisors (7006868366).

8047871986 is a wasteful number, since it uses less digits than its factorization.

8047871986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14514.

The product of its (nonzero) digits is 5419008, while the sum is 58.

The square root of 8047871986 is about 89709.9324824180. The cubic root of 8047871986 is about 2003.9814011299.

The spelling of 8047871986 in words is "eight billion, forty-seven million, eight hundred seventy-one thousand, nine hundred eighty-six".