86447717 has 8 divisors (see below), whose sum is σ = 88615296. Its totient is φ = 84300112.

The previous prime is 86447693. The next prime is 86447741. The reversal of 86447717 is 71774468.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (86447693) and next prime (86447741).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86447717 - 2⁶ = 86447653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86447117) 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, 3968 + ... + 13734.

It is an arithmetic number, because the mean of its divisors is an integer number (11076912).

Almost surely, 2^86447717 is an apocalyptic number.

It is an amenable number.

86447717 is a deficient number, since it is larger than the sum of its proper divisors (2167579).

86447717 is a wasteful number, since it uses less digits than its factorization.

86447717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9987.

The product of its digits is 263424, while the sum is 44.

The square root of 86447717 is about 9297.7264425235. The cubic root of 86447717 is about 442.1651495493.

It can be divided in two parts, 8644 and 7717, that added together give a palindrome (16361).

The spelling of 86447717 in words is "eighty-six million, four hundred forty-seven thousand, seven hundred seventeen".