86886618 has 48 divisors (see below), whose sum is σ = 215067456. Its totient is φ = 22913280.

The previous prime is 86886589. The next prime is 86886629. The reversal of 86886618 is 81668868.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 978 + ... + 13218.

It is an arithmetic number, because the mean of its divisors is an integer number (4480572).

Almost surely, 2^86886618 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 86886618, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (107533728).

86886618 is an abundant number, since it is smaller than the sum of its proper divisors (128180838).

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

86886618 is a wasteful number, since it uses less digits than its factorization.

86886618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12279 (or 12266 counting only the distinct ones).

The product of its digits is 884736, while the sum is 51.

The square root of 86886618 is about 9321.2991583792. The cubic root of 86886618 is about 442.9121876676.

The spelling of 86886618 in words is "eighty-six million, eight hundred eighty-six thousand, six hundred eighteen".