86798559 has 8 divisors (see below), whose sum is σ = 118859440. Its totient is φ = 56301696.

The previous prime is 86798539. The next prime is 86798563. The reversal of 86798559 is 95589768.

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

It is not a de Polignac number, because 86798559 - 2⁷ = 86798431 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 86798499 and 86798508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86798539) 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, 390874 + ... + 391095.

It is an arithmetic number, because the mean of its divisors is an integer number (14857430).

Almost surely, 2^86798559 is an apocalyptic number.

86798559 is a deficient number, since it is larger than the sum of its proper divisors (32060881).

86798559 is a wasteful number, since it uses less digits than its factorization.

86798559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782009.

The product of its digits is 5443200, while the sum is 57.

The square root of 86798559 is about 9316.5744241110. The cubic root of 86798559 is about 442.7625075869.

The spelling of 86798559 in words is "eighty-six million, seven hundred ninety-eight thousand, five hundred fifty-nine".