284828 has 12 divisors (see below), whose sum is σ = 514752. Its totient is φ = 137760.

The previous prime is 284819. The next prime is 284831. The reversal of 284828 is 828482.

It is a super-2 number, since 2×284828² = 162253979168, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 284794 and 284803.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 284828.

It is an unprimeable number.

284828 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1025 + ... + 1272.

It is an arithmetic number, because the mean of its divisors is an integer number (42896).

2²⁸⁴⁸²⁸ is an apocalyptic number.

It is an amenable number.

284828 is a deficient number, since it is larger than the sum of its proper divisors (229924).

284828 is a wasteful number, since it uses less digits than its factorization.

284828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332 (or 2330 counting only the distinct ones).

The product of its digits is 8192, while the sum is 32.

The square root of 284828 is about 533.6927955294. The cubic root of 284828 is about 65.7952023306.

The spelling of 284828 in words is "two hundred eighty-four thousand, eight hundred twenty-eight".