284397 has 8 divisors (see below), whose sum is σ = 387456. Its totient is φ = 185472.

The previous prime is 284387. The next prime is 284407. The reversal of 284397 is 793482.

It is an interprime number because it is at equal distance from previous prime (284387) and next prime (284407).

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

It is not a de Polignac number, because 284397 - 2⁷ = 284269 is a prime.

284397 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284357) 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 7 ways as a sum of consecutive naturals, for example, 868 + ... + 1149.

It is an arithmetic number, because the mean of its divisors is an integer number (48432).

2²⁸⁴³⁹⁷ is an apocalyptic number.

It is an amenable number.

284397 is a deficient number, since it is larger than the sum of its proper divisors (103059).

284397 is a wasteful number, since it uses less digits than its factorization.

284397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2067.

The product of its digits is 12096, while the sum is 33.

The square root of 284397 is about 533.2888523118. The cubic root of 284397 is about 65.7619986102.

The spelling of 284397 in words is "two hundred eighty-four thousand, three hundred ninety-seven".