199882849 has 2 divisors, whose sum is σ = 199882850. Its totient is φ = 199882848.

The previous prime is 199882847. The next prime is 199882853. The reversal of 199882849 is 948288991.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 194407249 + 5475600 = 13943^2 + 2340^2 .

It is a cyclic number.

It is not a de Polignac number, because 199882849 - 2¹ = 199882847 is a prime.

Together with 199882847, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 199882793 and 199882802.

It is not a weakly prime, because it can be changed into another prime (199882847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99941424 + 99941425.

It is an arithmetic number, because the mean of its divisors is an integer number (99941425).

Almost surely, 2^199882849 is an apocalyptic number.

It is an amenable number.

199882849 is a deficient number, since it is larger than the sum of its proper divisors (1).

199882849 is an equidigital number, since it uses as much as digits as its factorization.

199882849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2985984, while the sum is 58.

The square root of 199882849 is about 14137.9931036905. The cubic root of 199882849 is about 584.6893414734.

The spelling of 199882849 in words is "one hundred ninety-nine million, eight hundred eighty-two thousand, eight hundred forty-nine".