286861085 has 8 divisors (see below), whose sum is σ = 393409536. Its totient is φ = 196704720.

The previous prime is 286861079. The next prime is 286861097. The reversal of 286861085 is 580168682.

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

It is not a de Polignac number, because 286861085 - 2⁶ = 286861021 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 7 ways as a sum of consecutive naturals, for example, 4097981 + ... + 4098050.

It is an arithmetic number, because the mean of its divisors is an integer number (49176192).

Almost surely, 2^286861085 is an apocalyptic number.

It is an amenable number.

286861085 is a deficient number, since it is larger than the sum of its proper divisors (106548451).

286861085 is an equidigital number, since it uses as much as digits as its factorization.

286861085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8196043.

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 286861085 is about 16936.9739032686. The cubic root of 286861085 is about 659.5137871420.

The spelling of 286861085 in words is "two hundred eighty-six million, eight hundred sixty-one thousand, eighty-five".