284868481 has 8 divisors (see below), whose sum is σ = 292199400. Its totient is φ = 277610112.

The previous prime is 284868469. The next prime is 284868497. The reversal of 284868481 is 184868482.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 75082225 + 209786256 = 8665^2 + 14484^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 284868481 - 2⁵ = 284868449 is a prime.

It is a super-2 number, since 2×284868481² = 162300102934494722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284868431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10140 + ... + 25933.

It is an arithmetic number, because the mean of its divisors is an integer number (36524925).

Almost surely, 2^284868481 is an apocalyptic number.

It is an amenable number.

284868481 is a deficient number, since it is larger than the sum of its proper divisors (7330919).

284868481 is a wasteful number, since it uses less digits than its factorization.

284868481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36275.

The product of its digits is 786432, while the sum is 49.

The square root of 284868481 is about 16878.0473100415. The cubic root of 284868481 is about 657.9831921687.

Subtracting from 284868481 its reverse (184868482), we obtain a palindrome (99999999).

The spelling of 284868481 in words is "two hundred eighty-four million, eight hundred sixty-eight thousand, four hundred eighty-one".