284778996 has 24 divisors (see below), whose sum is σ = 671952960. Its totient is φ = 93859392.

The previous prime is 284778971. The next prime is 284779013. The reversal of 284778996 is 699877482.

284778996 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 an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132256 + ... + 134391.

It is an arithmetic number, because the mean of its divisors is an integer number (27998040).

Almost surely, 2^284778996 is an apocalyptic number.

It is an amenable number.

284778996 is an abundant number, since it is smaller than the sum of its proper divisors (387173964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

284778996 is a wasteful number, since it uses less digits than its factorization.

284778996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266743 (or 266741 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 60.

The square root of 284778996 is about 16875.3961731273. The cubic root of 284778996 is about 657.9142880998.

It can be divided in two parts, 28477 and 8996, that added together give a palindrome (37473).

The spelling of 284778996 in words is "two hundred eighty-four million, seven hundred seventy-eight thousand, nine hundred ninety-six".