86616140 has 24 divisors (see below), whose sum is σ = 195886320. Its totient is φ = 31981248.

The previous prime is 86616121. The next prime is 86616169. The reversal of 86616140 is 4161668.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 86616097 and 86616106.

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, 166310 + ... + 166829.

It is an arithmetic number, because the mean of its divisors is an integer number (8161930).

Almost surely, 2^86616140 is an apocalyptic number.

It is an amenable number.

86616140 is an abundant number, since it is smaller than the sum of its proper divisors (109270180).

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

86616140 is a wasteful number, since it uses less digits than its factorization.

86616140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333161 (or 333159 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 86616140 is about 9306.7792495578. The cubic root of 86616140 is about 442.4521147923.

The spelling of 86616140 in words is "eighty-six million, six hundred sixteen thousand, one hundred forty".