86156844 has 12 divisors (see below), whose sum is σ = 201032664. Its totient is φ = 28718944.

The previous prime is 86156813. The next prime is 86156857. The reversal of 86156844 is 44865168.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 86156796 and 86156805.

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, 3589857 + ... + 3589880.

It is an arithmetic number, because the mean of its divisors is an integer number (16752722).

Almost surely, 2^86156844 is an apocalyptic number.

It is an amenable number.

86156844 is an abundant number, since it is smaller than the sum of its proper divisors (114875820).

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

86156844 is a wasteful number, since it uses less digits than its factorization.

86156844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7179744 (or 7179742 counting only the distinct ones).

The product of its digits is 184320, while the sum is 42.

The square root of 86156844 is about 9282.0711050929. The cubic root of 86156844 is about 441.6686705656.

The spelling of 86156844 in words is "eighty-six million, one hundred fifty-six thousand, eight hundred forty-four".