86427816 has 32 divisors (see below), whose sum is σ = 217404960. Its totient is φ = 28631232.

The previous prime is 86427799. The next prime is 86427829. The reversal of 86427816 is 61872468.

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 7 ways as a sum of consecutive naturals, for example, 7135 + ... + 14958.

It is an arithmetic number, because the mean of its divisors is an integer number (6793905).

Almost surely, 2^86427816 is an apocalyptic number.

It is an amenable number.

86427816 is an abundant number, since it is smaller than the sum of its proper divisors (130977144).

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

86427816 is a wasteful number, since it uses less digits than its factorization.

86427816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22265 (or 22261 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 86427816 is about 9296.6561730549. The cubic root of 86427816 is about 442.1312168855.

It can be divided in two parts, 864 and 27816, that added together give a triangular number (28680 = T₂₃₉).

The spelling of 86427816 in words is "eighty-six million, four hundred twenty-seven thousand, eight hundred sixteen".