86108705 has 4 divisors (see below), whose sum is σ = 103330452. Its totient is φ = 68886960.

The previous prime is 86108699. The next prime is 86108713. The reversal of 86108705 is 50780168.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 60777616 + 25331089 = 7796^2 + 5033^2 .

It is not a de Polignac number, because 86108705 - 2¹⁶ = 86043169 is a prime.

It is a Duffinian number.

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, 8610866 + ... + 8610875.

It is an arithmetic number, because the mean of its divisors is an integer number (25832613).

Almost surely, 2^86108705 is an apocalyptic number.

It is an amenable number.

86108705 is a deficient number, since it is larger than the sum of its proper divisors (17221747).

86108705 is a wasteful number, since it uses less digits than its factorization.

86108705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17221746.

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

The square root of 86108705 is about 9279.4776253839. The cubic root of 86108705 is about 441.5863963928.

The spelling of 86108705 in words is "eighty-six million, one hundred eight thousand, seven hundred five".