199493683 has 2 divisors, whose sum is σ = 199493684. Its totient is φ = 199493682.

The previous prime is 199493629. The next prime is 199493699. The reversal of 199493683 is 386394991.

It is a strong prime.

It is an emirp because it is prime and its reverse (386394991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199493683 - 2¹³ = 199485491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 199493683.

It is not a weakly prime, because it can be changed into another prime (199493083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99746841 + 99746842.

It is an arithmetic number, because the mean of its divisors is an integer number (99746842).

Almost surely, 2^199493683 is an apocalyptic number.

199493683 is a deficient number, since it is larger than the sum of its proper divisors (1).

199493683 is an equidigital number, since it uses as much as digits as its factorization.

199493683 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1259712, while the sum is 52.

The square root of 199493683 is about 14124.2232706793. The cubic root of 199493683 is about 584.3096373194.

It can be divided in two parts, 19949 and 3683, that added together give a palindrome (23632).

The spelling of 199493683 in words is "one hundred ninety-nine million, four hundred ninety-three thousand, six hundred eighty-three".