284679313 has 2 divisors, whose sum is σ = 284679314. Its totient is φ = 284679312.

The previous prime is 284679281. The next prime is 284679361. The reversal of 284679313 is 313976482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 258791569 + 25887744 = 16087^2 + 5088^2 .

It is a cyclic number.

It is not a de Polignac number, because 284679313 - 2⁵ = 284679281 is a prime.

It is a super-2 number, since 2×284679313² = 162084622500303938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 284679313.

It is not a weakly prime, because it can be changed into another prime (284679713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142339656 + 142339657.

It is an arithmetic number, because the mean of its divisors is an integer number (142339657).

Almost surely, 2^284679313 is an apocalyptic number.

It is an amenable number.

284679313 is a deficient number, since it is larger than the sum of its proper divisors (1).

284679313 is an equidigital number, since it uses as much as digits as its factorization.

284679313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 43.

The square root of 284679313 is about 16872.4424135926. The cubic root of 284679313 is about 657.8375145029.

The spelling of 284679313 in words is "two hundred eighty-four million, six hundred seventy-nine thousand, three hundred thirteen".