284897 has 2 divisors, whose sum is σ = 284898. Its totient is φ = 284896.

The previous prime is 284881. The next prime is 284899. The reversal of 284897 is 798482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 271441 + 13456 = 521^2 + 116^2 .

It is a cyclic number.

It is not a de Polignac number, because 284897 - 2⁴ = 284881 is a prime.

Together with 284899, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 284897.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 284897.

It is not a weakly prime, because it can be changed into another prime (284899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142448 + 142449.

It is an arithmetic number, because the mean of its divisors is an integer number (142449).

2²⁸⁴⁸⁹⁷ is an apocalyptic number.

It is an amenable number.

284897 is a deficient number, since it is larger than the sum of its proper divisors (1).

284897 is an equidigital number, since it uses as much as digits as its factorization.

284897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 38.

The square root of 284897 is about 533.7574355454. The cubic root of 284897 is about 65.8005148964.

The spelling of 284897 in words is "two hundred eighty-four thousand, eight hundred ninety-seven".