86287218 has 8 divisors (see below), whose sum is σ = 172574448. Its totient is φ = 28762404.

The previous prime is 86287217. The next prime is 86287231. The reversal of 86287218 is 81278268.

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

86287218 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 86287218.

It is not an unprimeable number, because it can be changed into a prime (86287217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7190596 + ... + 7190607.

It is an arithmetic number, because the mean of its divisors is an integer number (21571806).

Almost surely, 2^86287218 is an apocalyptic number.

86287218 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

86287218 is a wasteful number, since it uses less digits than its factorization.

86287218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14381208.

The product of its digits is 86016, while the sum is 42.

The square root of 86287218 is about 9289.0913441520. The cubic root of 86287218 is about 441.8913384669.

The spelling of 86287218 in words is "eighty-six million, two hundred eighty-seven thousand, two hundred eighteen".