284197 has 4 divisors (see below), whose sum is σ = 291916. Its totient is φ = 276480.

The previous prime is 284191. The next prime is 284201. The reversal of 284197 is 791482.

284197 = T₄₈ + T₄₉ + ... + T₁₂₁.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 791482 = 2 ⋅395741.

It can be written as a sum of positive squares in 2 ways, for example, as 229441 + 54756 = 479^2 + 234^2 .

It is a cyclic number.

It is not a de Polignac number, because 284197 - 2¹⁵ = 251429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284191) 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, 3804 + ... + 3877.

It is an arithmetic number, because the mean of its divisors is an integer number (72979).

2²⁸⁴¹⁹⁷ is an apocalyptic number.

It is an amenable number.

284197 is a deficient number, since it is larger than the sum of its proper divisors (7719).

284197 is an equidigital number, since it uses as much as digits as its factorization.

284197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718.

The product of its digits is 4032, while the sum is 31.

The square root of 284197 is about 533.1013036938. The cubic root of 284197 is about 65.7465794555.

It can be divided in two parts, 28 and 4197, that added together give a square (4225 = 65²).

The spelling of 284197 in words is "two hundred eighty-four thousand, one hundred ninety-seven".