286870086 has 40 divisors (see below), whose sum is σ = 646953120. Its totient is φ = 95005872.

The previous prime is 286870069. The next prime is 286870097. The reversal of 286870086 is 680078682.

286870086 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent 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 19 ways as a sum of consecutive naturals, for example, 19795 + ... + 31073.

It is an arithmetic number, because the mean of its divisors is an integer number (16173828).

Almost surely, 2^286870086 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 286870086, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323476560).

286870086 is an abundant number, since it is smaller than the sum of its proper divisors (360083034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286870086 is a wasteful number, since it uses less digits than its factorization.

286870086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11450 (or 11441 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 286870086 is about 16937.2396216149. The cubic root of 286870086 is about 659.5206850469.

The spelling of 286870086 in words is "two hundred eighty-six million, eight hundred seventy thousand, eighty-six".