86505873 has 8 divisors (see below), whose sum is σ = 115979136. Its totient is φ = 57351600.

The previous prime is 86505871. The next prime is 86505883. The reversal of 86505873 is 37850568.

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

It is not a de Polignac number, because 86505873 - 2¹ = 86505871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86505871) 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, 79113 + ... + 80198.

It is an arithmetic number, because the mean of its divisors is an integer number (14497392).

Almost surely, 2^86505873 is an apocalyptic number.

It is an amenable number.

86505873 is a deficient number, since it is larger than the sum of its proper divisors (29473263).

86505873 is a wasteful number, since it uses less digits than its factorization.

86505873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159495.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 86505873 is about 9300.8533479461. The cubic root of 86505873 is about 442.2642799570.

It can be divided in two parts, 86505 and 873, that added together give a palindrome (87378).

The spelling of 86505873 in words is "eighty-six million, five hundred five thousand, eight hundred seventy-three".