284668 has 6 divisors (see below), whose sum is σ = 498176. Its totient is φ = 142332.

The previous prime is 284659. The next prime is 284681. The reversal of 284668 is 866482.

It is a congruent number.

It is an unprimeable number.

284668 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 as a sum of consecutive naturals, namely, 35580 + ... + 35587.

2²⁸⁴⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

284668 is a deficient number, since it is larger than the sum of its proper divisors (213508).

284668 is a wasteful number, since it uses less digits than its factorization.

284668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71171 (or 71169 counting only the distinct ones).

The product of its digits is 18432, while the sum is 34.

The square root of 284668 is about 533.5428755030. The cubic root of 284668 is about 65.7828800353.

The spelling of 284668 in words is "two hundred eighty-four thousand, six hundred sixty-eight".