284712289 has 2 divisors, whose sum is σ = 284712290. Its totient is φ = 284712288.

The previous prime is 284712269. The next prime is 284712301. The reversal of 284712289 is 982217482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184552225 + 100160064 = 13585^2 + 10008^2 .

It is a cyclic number.

It is not a de Polignac number, because 284712289 - 2⁵ = 284712257 is a prime.

It is a super-2 number, since 2×284712289² = 162122175015239042, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (284712269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142356144 + 142356145.

It is an arithmetic number, because the mean of its divisors is an integer number (142356145).

Almost surely, 2^284712289 is an apocalyptic number.

It is an amenable number.

284712289 is a deficient number, since it is larger than the sum of its proper divisors (1).

284712289 is an equidigital number, since it uses as much as digits as its factorization.

284712289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 43.

The square root of 284712289 is about 16873.4196000692. The cubic root of 284712289 is about 657.8629138573.

The spelling of 284712289 in words is "two hundred eighty-four million, seven hundred twelve thousand, two hundred eighty-nine".