86687886 has 8 divisors (see below), whose sum is σ = 173375784. Its totient is φ = 28895960.

The previous prime is 86687857. The next prime is 86687891. The reversal of 86687886 is 68878668.

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

86687886 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7223985 + ... + 7223996.

It is an arithmetic number, because the mean of its divisors is an integer number (21671973).

Almost surely, 2^86687886 is an apocalyptic number.

86687886 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.

86687886 is a wasteful number, since it uses less digits than its factorization.

86687886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14447986.

The product of its digits is 6193152, while the sum is 57.

The square root of 86687886 is about 9310.6329537792. The cubic root of 86687886 is about 442.5742452585.

The spelling of 86687886 in words is "eighty-six million, six hundred eighty-seven thousand, eight hundred eighty-six".