200084861 has 2 divisors, whose sum is σ = 200084862. Its totient is φ = 200084860.

The previous prime is 200084851. The next prime is 200084909. The reversal of 200084861 is 168480002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195160900 + 4923961 = 13970^2 + 2219^2 .

It is a cyclic number.

It is not a de Polignac number, because 200084861 - 2²² = 195890557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200084831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100042430 + 100042431.

It is an arithmetic number, because the mean of its divisors is an integer number (100042431).

Almost surely, 2^200084861 is an apocalyptic number.

It is an amenable number.

200084861 is a deficient number, since it is larger than the sum of its proper divisors (1).

200084861 is an equidigital number, since it uses as much as digits as its factorization.

200084861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 200084861 is about 14145.1355949669. The cubic root of 200084861 is about 584.8862476368.

The spelling of 200084861 in words is "two hundred million, eighty-four thousand, eight hundred sixty-one".