200912017 has 2 divisors, whose sum is σ = 200912018. Its totient is φ = 200912016.

The previous prime is 200912011. The next prime is 200912027. The reversal of 200912017 is 710219002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 186158736 + 14753281 = 13644^2 + 3841^2 .

It is a cyclic number.

It is not a de Polignac number, because 200912017 - 2³ = 200912009 is a prime.

It is not a weakly prime, because it can be changed into another prime (200912011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100456008 + 100456009.

It is an arithmetic number, because the mean of its divisors is an integer number (100456009).

Almost surely, 2^200912017 is an apocalyptic number.

It is an amenable number.

200912017 is a deficient number, since it is larger than the sum of its proper divisors (1).

200912017 is an equidigital number, since it uses as much as digits as its factorization.

200912017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 200912017 is about 14174.3436179599. The cubic root of 200912017 is about 585.6911178366.

The spelling of 200912017 in words is "two hundred million, nine hundred twelve thousand, seventeen".