282818989 has 2 divisors, whose sum is σ = 282818990. Its totient is φ = 282818988.

The previous prime is 282818981. The next prime is 282819007. The reversal of 282818989 is 989818282.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142396489 + 140422500 = 11933^2 + 11850^2 .

It is a cyclic number.

It is not a de Polignac number, because 282818989 - 2³ = 282818981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (282818981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 141409494 + 141409495.

It is an arithmetic number, because the mean of its divisors is an integer number (141409495).

Almost surely, 2^282818989 is an apocalyptic number.

It is an amenable number.

282818989 is a deficient number, since it is larger than the sum of its proper divisors (1).

282818989 is an equidigital number, since it uses as much as digits as its factorization.

282818989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1327104, while the sum is 55.

The square root of 282818989 is about 16817.2229871641. Note that the first 3 decimals coincide. The cubic root of 282818989 is about 656.4014349965.

The spelling of 282818989 in words is "two hundred eighty-two million, eight hundred eighteen thousand, nine hundred eighty-nine".