284666990 has 8 divisors (see below), whose sum is σ = 512400600. Its totient is φ = 113866792.

The previous prime is 284666981. The next prime is 284666999. The reversal of 284666990 is 99666482.

It is an interprime number because it is at equal distance from previous prime (284666981) and next prime (284666999).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284666999) 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 in 3 ways as a sum of consecutive naturals, for example, 14233340 + ... + 14233359.

It is an arithmetic number, because the mean of its divisors is an integer number (64050075).

Almost surely, 2^284666990 is an apocalyptic number.

284666990 is a deficient number, since it is larger than the sum of its proper divisors (227733610).

284666990 is a wasteful number, since it uses less digits than its factorization.

284666990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28466706.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 284666990 is about 16872.0772283676. The cubic root of 284666990 is about 657.8280223617.

The spelling of 284666990 in words is "two hundred eighty-four million, six hundred sixty-six thousand, nine hundred ninety".