86500817 has 8 divisors (see below), whose sum is σ = 94116456. Its totient is φ = 79022592.

The previous prime is 86500793. The next prime is 86500829. The reversal of 86500817 is 71800568.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 215296 + 86285521 = 464^2 + 9289^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86500817 - 2¹⁶ = 86435281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86500837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33038 + ... + 35559.

It is an arithmetic number, because the mean of its divisors is an integer number (11764557).

Almost surely, 2^86500817 is an apocalyptic number.

It is an amenable number.

86500817 is a deficient number, since it is larger than the sum of its proper divisors (7615639).

86500817 is a wasteful number, since it uses less digits than its factorization.

86500817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68707.

The product of its (nonzero) digits is 13440, while the sum is 35.

The square root of 86500817 is about 9300.5815409575. The cubic root of 86500817 is about 442.2556634639.

The spelling of 86500817 in words is "eighty-six million, five hundred thousand, eight hundred seventeen".