282991117 has 4 divisors (see below), whose sum is σ = 284165596. Its totient is φ = 281816640.

The previous prime is 282991109. The next prime is 282991123. The reversal of 282991117 is 711199282.

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 156900676 + 126090441 = 12526^2 + 11229^2 .

It is a cyclic number.

It is not a de Polignac number, because 282991117 - 2³ = 282991109 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 282991117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (282992117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 586878 + ... + 587359.

It is an arithmetic number, because the mean of its divisors is an integer number (71041399).

Almost surely, 2^282991117 is an apocalyptic number.

It is an amenable number.

282991117 is a deficient number, since it is larger than the sum of its proper divisors (1174479).

282991117 is a wasteful number, since it uses less digits than its factorization.

282991117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1174478.

The product of its digits is 18144, while the sum is 40.

The square root of 282991117 is about 16822.3398194187. The cubic root of 282991117 is about 656.5345733369.

The spelling of 282991117 in words is "two hundred eighty-two million, nine hundred ninety-one thousand, one hundred seventeen".