199827653 has 2 divisors, whose sum is σ = 199827654. Its totient is φ = 199827652.

The previous prime is 199827647. The next prime is 199827659. The reversal of 199827653 is 356728991.

It is a balanced prime because it is at equal distance from previous prime (199827647) and next prime (199827659).

It can be written as a sum of positive squares in only one way, i.e., 196504324 + 3323329 = 14018^2 + 1823^2 .

It is a cyclic number.

It is not a de Polignac number, because 199827653 - 2¹⁶ = 199762117 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199827659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99913826 + 99913827.

It is an arithmetic number, because the mean of its divisors is an integer number (99913827).

Almost surely, 2^199827653 is an apocalyptic number.

It is an amenable number.

199827653 is a deficient number, since it is larger than the sum of its proper divisors (1).

199827653 is an equidigital number, since it uses as much as digits as its factorization.

199827653 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 50.

The square root of 199827653 is about 14136.0409238230. The cubic root of 199827653 is about 584.6355174725.

The spelling of 199827653 in words is "one hundred ninety-nine million, eight hundred twenty-seven thousand, six hundred fifty-three".