284868308 has 6 divisors (see below), whose sum is σ = 498519546. Its totient is φ = 142434152.

The previous prime is 284868307. The next prime is 284868323. The reversal of 284868308 is 803868482.

It can be written as a sum of positive squares in only one way, i.e., 200448964 + 84419344 = 14158^2 + 9188^2 .

It is a super-3 number, since 3×284868308³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284868307) 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 as a sum of consecutive naturals, namely, 35608535 + ... + 35608542.

It is an arithmetic number, because the mean of its divisors is an integer number (83086591).

Almost surely, 2^284868308 is an apocalyptic number.

It is an amenable number.

284868308 is a deficient number, since it is larger than the sum of its proper divisors (213651238).

284868308 is a wasteful number, since it uses less digits than its factorization.

284868308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71217081 (or 71217079 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 47.

The square root of 284868308 is about 16878.0421850403. The cubic root of 284868308 is about 657.9830589714.

The spelling of 284868308 in words is "two hundred eighty-four million, eight hundred sixty-eight thousand, three hundred eight".