86686243 has 12 divisors (see below), whose sum is σ = 102263472. Its totient is φ = 73253040.

The previous prime is 86686219. The next prime is 86686253. The reversal of 86686243 is 34268668.

It is not a de Polignac number, because 86686243 - 2⁵ = 86686211 is a prime.

It is a super-3 number, since 3×86686243³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 86686243.

It is not an unprimeable number, because it can be changed into a prime (86686253) 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 11 ways as a sum of consecutive naturals, for example, 8980 + ... + 15937.

It is an arithmetic number, because the mean of its divisors is an integer number (8521956).

Almost surely, 2^86686243 is an apocalyptic number.

86686243 is a deficient number, since it is larger than the sum of its proper divisors (15577229).

86686243 is a wasteful number, since it uses less digits than its factorization.

86686243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25002 (or 24995 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 86686243 is about 9310.5447209065. The cubic root of 86686243 is about 442.5714491966.

The spelling of 86686243 in words is "eighty-six million, six hundred eighty-six thousand, two hundred forty-three".