284287361 has 4 divisors (see below), whose sum is σ = 284909892. Its totient is φ = 283664832.

The previous prime is 284287357. The next prime is 284287397. The reversal of 284287361 is 163782482.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 266309761 + 17977600 = 16319^2 + 4240^2 .

It is a cyclic number.

It is not a de Polignac number, because 284287361 - 2² = 284287357 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (284287301) 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, 310580 + ... + 311493.

It is an arithmetic number, because the mean of its divisors is an integer number (71227473).

Almost surely, 2^284287361 is an apocalyptic number.

It is an amenable number.

284287361 is a deficient number, since it is larger than the sum of its proper divisors (622531).

284287361 is an equidigital number, since it uses as much as digits as its factorization.

284287361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 622530.

The product of its digits is 129024, while the sum is 41.

The square root of 284287361 is about 16860.8232598530. The cubic root of 284287361 is about 657.5354680226.

The spelling of 284287361 in words is "two hundred eighty-four million, two hundred eighty-seven thousand, three hundred sixty-one".