86218317 has 8 divisors (see below), whose sum is σ = 127730880. Its totient is φ = 57478860.

The previous prime is 86218289. The next prime is 86218357. The reversal of 86218317 is 71381268.

It is not a de Polignac number, because 86218317 - 2⁸ = 86218061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86218357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1596609 + ... + 1596662.

It is an arithmetic number, because the mean of its divisors is an integer number (15966360).

Almost surely, 2^86218317 is an apocalyptic number.

It is an amenable number.

86218317 is a deficient number, since it is larger than the sum of its proper divisors (41512563).

86218317 is a wasteful number, since it uses less digits than its factorization.

86218317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3193280 (or 3193274 counting only the distinct ones).

The product of its digits is 16128, while the sum is 36.

The square root of 86218317 is about 9285.3818984466. The cubic root of 86218317 is about 441.7736892816.

The spelling of 86218317 in words is "eighty-six million, two hundred eighteen thousand, three hundred seventeen".