86500820 has 48 divisors (see below), whose sum is σ = 213225600. Its totient is φ = 28854144.

The previous prime is 86500793. The next prime is 86500829. The reversal of 86500820 is 2800568.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86500829) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3170 + ... + 13529.

It is an arithmetic number, because the mean of its divisors is an integer number (4442200).

Almost surely, 2^86500820 is an apocalyptic number.

It is an amenable number.

86500820 is an abundant number, since it is smaller than the sum of its proper divisors (126724780).

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

86500820 is a wasteful number, since it uses less digits than its factorization.

86500820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16752 (or 16750 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 86500820 is about 9300.5817022378. The cubic root of 86500820 is about 442.2556685766.

The spelling of 86500820 in words is "eighty-six million, five hundred thousand, eight hundred twenty".