200021297 has 16 divisors (see below), whose sum is σ = 236317440. Its totient is φ = 165716928.

The previous prime is 200021293. The next prime is 200021333. The reversal of 200021297 is 792120002.

200021297 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 200021297 - 2² = 200021293 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (200021293) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38204 + ... + 43122.

It is an arithmetic number, because the mean of its divisors is an integer number (14769840).

Almost surely, 2^200021297 is an apocalyptic number.

It is an amenable number.

200021297 is a deficient number, since it is larger than the sum of its proper divisors (36296143).

200021297 is a wasteful number, since it uses less digits than its factorization.

200021297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5120.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 200021297 is about 14142.8885663432. Note that the first 3 decimals coincide. The cubic root of 200021297 is about 584.8243045077.

Adding to 200021297 its reverse (792120002), we get a palindrome (992141299).

The spelling of 200021297 in words is "two hundred million, twenty-one thousand, two hundred ninety-seven".