200538889 has 2 divisors, whose sum is σ = 200538890. Its totient is φ = 200538888.

The previous prime is 200538887. The next prime is 200538917. The reversal of 200538889 is 988835002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 132641289 + 67897600 = 11517^2 + 8240^2 .

It is a cyclic number.

It is not a de Polignac number, because 200538889 - 2¹ = 200538887 is a prime.

Together with 200538887, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (200538883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100269444 + 100269445.

It is an arithmetic number, because the mean of its divisors is an integer number (100269445).

Almost surely, 2^200538889 is an apocalyptic number.

It is an amenable number.

200538889 is a deficient number, since it is larger than the sum of its proper divisors (1).

200538889 is an equidigital number, since it uses as much as digits as its factorization.

200538889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 43.

The square root of 200538889 is about 14161.1754102546. The cubic root of 200538889 is about 585.3283169354.

The spelling of 200538889 in words is "two hundred million, five hundred thirty-eight thousand, eight hundred eighty-nine".