200705317 has 8 divisors (see below), whose sum is σ = 208049400. Its totient is φ = 193389504.

The previous prime is 200705299. The next prime is 200705333. The reversal of 200705317 is 713507002.

It can be written as a sum of positive squares in 4 ways, for example, as 21520321 + 179184996 = 4639^2 + 13386^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-200705317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 200705291 and 200705300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (200705347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7963 + ... + 21559.

It is an arithmetic number, because the mean of its divisors is an integer number (26006175).

Almost surely, 2^200705317 is an apocalyptic number.

It is an amenable number.

200705317 is a deficient number, since it is larger than the sum of its proper divisors (7344083).

200705317 is a wasteful number, since it uses less digits than its factorization.

200705317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14135.

The product of its (nonzero) digits is 1470, while the sum is 25.

The square root of 200705317 is about 14167.0503987245. The cubic root of 200705317 is about 585.4901942412.

The spelling of 200705317 in words is "two hundred million, seven hundred five thousand, three hundred seventeen".