284289886 has 16 divisors (see below), whose sum is σ = 432900000. Its totient is φ = 139995648.

The previous prime is 284289883. The next prime is 284289919. The reversal of 284289886 is 688982482.

It is a happy number.

284289886 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 not an unprimeable number, because it can be changed into a prime (284289883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 181575 + ... + 183133.

It is an arithmetic number, because the mean of its divisors is an integer number (27056250).

Almost surely, 2^284289886 is an apocalyptic number.

284289886 is a deficient number, since it is larger than the sum of its proper divisors (148610114).

284289886 is a wasteful number, since it uses less digits than its factorization.

284289886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883.

The product of its digits is 3538944, while the sum is 55.

The square root of 284289886 is about 16860.8981374066. The cubic root of 284289886 is about 657.5374147291.

The spelling of 284289886 in words is "two hundred eighty-four million, two hundred eighty-nine thousand, eight hundred eighty-six".