86984583987 has 16 divisors (see below), whose sum is σ = 132570709760. Its totient is φ = 49696936992.

The previous prime is 86984583971. The next prime is 86984584009. The reversal of 86984583987 is 78938548968.

It is not a de Polignac number, because 86984583987 - 2⁴ = 86984583971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86984583787) 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, 229633 + ... + 476130.

It is an arithmetic number, because the mean of its divisors is an integer number (8285669360).

Almost surely, 2^86984583987 is an apocalyptic number.

86984583987 is a deficient number, since it is larger than the sum of its proper divisors (45586125773).

86984583987 is a wasteful number, since it uses less digits than its factorization.

86984583987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711642.

The product of its digits is 836075520, while the sum is 75.

The spelling of 86984583987 in words is "eighty-six billion, nine hundred eighty-four million, five hundred eighty-three thousand, nine hundred eighty-seven".