284747852 has 6 divisors (see below), whose sum is σ = 498308748. Its totient is φ = 142373924.

The previous prime is 284747783. The next prime is 284747857. The reversal of 284747852 is 258747482.

It is a happy number.

It is a super-2 number, since 2×284747852² = 162162678437227808, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 284747797 and 284747806.

It is not an unprimeable number, because it can be changed into a prime (284747857) by changing a digit.

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 as a sum of consecutive naturals, namely, 35593478 + ... + 35593485.

It is an arithmetic number, because the mean of its divisors is an integer number (83051458).

Almost surely, 2^284747852 is an apocalyptic number.

It is an amenable number.

284747852 is a deficient number, since it is larger than the sum of its proper divisors (213560896).

284747852 is a wasteful number, since it uses less digits than its factorization.

284747852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71186967 (or 71186965 counting only the distinct ones).

The product of its digits is 1003520, while the sum is 47.

The square root of 284747852 is about 16874.4733843756. The cubic root of 284747852 is about 657.8903036185.

The spelling of 284747852 in words is "two hundred eighty-four million, seven hundred forty-seven thousand, eight hundred fifty-two".