284216386 has 8 divisors (see below), whose sum is σ = 426919680. Its totient is φ = 141909828.

The previous prime is 284216381. The next prime is 284216389. The reversal of 284216386 is 683612482.

284216386 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (284216381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97386 + ... + 100261.

It is an arithmetic number, because the mean of its divisors is an integer number (53364960).

Almost surely, 2^284216386 is an apocalyptic number.

284216386 is a deficient number, since it is larger than the sum of its proper divisors (142703294).

284216386 is a wasteful number, since it uses less digits than its factorization.

284216386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198368.

The product of its digits is 110592, while the sum is 40.

The square root of 284216386 is about 16858.7183973160. The cubic root of 284216386 is about 657.4807435073.

The spelling of 284216386 in words is "two hundred eighty-four million, two hundred sixteen thousand, three hundred eighty-six".