284473822 has 4 divisors (see below), whose sum is σ = 426710736. Its totient is φ = 142236910.

The previous prime is 284473807. The next prime is 284473823. The reversal of 284473822 is 228374482.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284473823) 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, 71118454 + ... + 71118457.

It is an arithmetic number, because the mean of its divisors is an integer number (106677684).

Almost surely, 2^284473822 is an apocalyptic number.

284473822 is a deficient number, since it is larger than the sum of its proper divisors (142236914).

284473822 is a wasteful number, since it uses less digits than its factorization.

284473822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142236913.

The product of its digits is 172032, while the sum is 40.

The square root of 284473822 is about 16866.3517691290. The cubic root of 284473822 is about 657.6791934011.

The spelling of 284473822 in words is "two hundred eighty-four million, four hundred seventy-three thousand, eight hundred twenty-two".