86436485 has 4 divisors (see below), whose sum is σ = 103723788. Its totient is φ = 69149184.

The previous prime is 86436479. The next prime is 86436521. The reversal of 86436485 is 58463468.

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 50027329 + 36409156 = 7073^2 + 6034^2 .

It is a cyclic number.

It is not a de Polignac number, because 86436485 - 2²⁰ = 85387909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8643644 + ... + 8643653.

It is an arithmetic number, because the mean of its divisors is an integer number (25930947).

Almost surely, 2^86436485 is an apocalyptic number.

It is an amenable number.

86436485 is a deficient number, since it is larger than the sum of its proper divisors (17287303).

86436485 is a wasteful number, since it uses less digits than its factorization.

86436485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17287302.

The product of its digits is 552960, while the sum is 44.

The square root of 86436485 is about 9297.1224042711. The cubic root of 86436485 is about 442.1459988062.

The spelling of 86436485 in words is "eighty-six million, four hundred thirty-six thousand, four hundred eighty-five".