284997 has 4 divisors (see below), whose sum is σ = 380000. Its totient is φ = 189996.

The previous prime is 284989. The next prime is 285007. The reversal of 284997 is 799482.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 284997 - 2³ = 284989 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284917) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47497 + ... + 47502.

It is an arithmetic number, because the mean of its divisors is an integer number (95000).

2²⁸⁴⁹⁹⁷ is an apocalyptic number.

It is an amenable number.

284997 is a deficient number, since it is larger than the sum of its proper divisors (95003).

284997 is an equidigital number, since it uses as much as digits as its factorization.

284997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95002.

The product of its digits is 36288, while the sum is 39.

The square root of 284997 is about 533.8511028367. The cubic root of 284997 is about 65.8082127448.

The spelling of 284997 in words is "two hundred eighty-four thousand, nine hundred ninety-seven".