86639016 has 16 divisors (see below), whose sum is σ = 216597600. Its totient is φ = 28879664.

The previous prime is 86639009. The next prime is 86639029. The reversal of 86639016 is 61093668.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1804956 + ... + 1805003.

It is an arithmetic number, because the mean of its divisors is an integer number (13537350).

Almost surely, 2^86639016 is an apocalyptic number.

It is an amenable number.

86639016 is an abundant number, since it is smaller than the sum of its proper divisors (129958584).

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

86639016 is a wasteful number, since it uses less digits than its factorization.

86639016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3609968 (or 3609964 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 39.

The square root of 86639016 is about 9308.0081650158. The cubic root of 86639016 is about 442.4910630517.

The spelling of 86639016 in words is "eighty-six million, six hundred thirty-nine thousand, sixteen".