200079009 has 12 divisors (see below), whose sum is σ = 311234196. Its totient is φ = 123125472.

The previous prime is 200079007. The next prime is 200079041. The reversal of 200079009 is 900970002.

It can be written as a sum of positive squares in 2 ways, for example, as 13838400 + 186240609 = 3720^2 + 13647^2 .

It is not a de Polignac number, because 200079009 - 2¹ = 200079007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200079007) 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 in 11 ways as a sum of consecutive naturals, for example, 854922 + ... + 855155.

It is an arithmetic number, because the mean of its divisors is an integer number (25936183).

Almost surely, 2^200079009 is an apocalyptic number.

It is an amenable number.

200079009 is a deficient number, since it is larger than the sum of its proper divisors (111155187).

200079009 is a wasteful number, since it uses less digits than its factorization.

200079009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1710096 (or 1710093 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 27.

The square root of 200079009 is about 14144.9287378905. The cubic root of 200079009 is about 584.8805454101.

The spelling of 200079009 in words is "two hundred million, seventy-nine thousand, nine".