200288821 has 2 divisors, whose sum is σ = 200288822. Its totient is φ = 200288820.

The previous prime is 200288791. The next prime is 200288827. The reversal of 200288821 is 128882002.

200288821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188073796 + 12215025 = 13714^2 + 3495^2 .

It is a cyclic number.

It is not a de Polignac number, because 200288821 - 2⁵ = 200288789 is a prime.

It is a super-2 number, since 2×200288821² = 80231223635140082, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200288827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100144410 + 100144411.

It is an arithmetic number, because the mean of its divisors is an integer number (100144411).

Almost surely, 2^200288821 is an apocalyptic number.

It is an amenable number.

200288821 is a deficient number, since it is larger than the sum of its proper divisors (1).

200288821 is an equidigital number, since it uses as much as digits as its factorization.

200288821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4096, while the sum is 31.

The square root of 200288821 is about 14152.3433042023. The cubic root of 200288821 is about 585.0849181522.

The spelling of 200288821 in words is "two hundred million, two hundred eighty-eight thousand, eight hundred twenty-one".