86505895 has 32 divisors (see below), whose sum is σ = 122411520. Its totient is φ = 57456000.

The previous prime is 86505883. The next prime is 86505919. The reversal of 86505895 is 59850568.

It is a happy number.

It is not a de Polignac number, because 86505895 - 2⁷ = 86505767 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 344520 + ... + 344770.

It is an arithmetic number, because the mean of its divisors is an integer number (3825360).

Almost surely, 2^86505895 is an apocalyptic number.

86505895 is a deficient number, since it is larger than the sum of its proper divisors (35905625).

86505895 is a wasteful number, since it uses less digits than its factorization.

86505895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 535.

The product of its (nonzero) digits is 432000, while the sum is 46.

The square root of 86505895 is about 9300.8545306332. The cubic root of 86505895 is about 442.2643174489.

The spelling of 86505895 in words is "eighty-six million, five hundred five thousand, eight hundred ninety-five".