199206386 has 16 divisors (see below), whose sum is σ = 303960600. Its totient is φ = 97899648.

The previous prime is 199206377. The next prime is 199206421. The reversal of 199206386 is 683602991.

It can be written as a sum of positive squares in 4 ways, for example, as 136305625 + 62900761 = 11675^2 + 7931^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27560 + ... + 34028.

Almost surely, 2^199206386 is an apocalyptic number.

199206386 is a deficient number, since it is larger than the sum of its proper divisors (104754214).

199206386 is a wasteful number, since it uses less digits than its factorization.

199206386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6733.

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 199206386 is about 14114.0492418016. The cubic root of 199206386 is about 584.0290084577.

The spelling of 199206386 in words is "one hundred ninety-nine million, two hundred six thousand, three hundred eighty-six".