199483729 has 16 divisors (see below), whose sum is σ = 219511296. Its totient is φ = 180460800.

The previous prime is 199483727. The next prime is 199483811. The reversal of 199483729 is 927384991.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 199483729 - 2¹ = 199483727 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199483727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81534 + ... + 83944.

It is an arithmetic number, because the mean of its divisors is an integer number (13719456).

Almost surely, 2^199483729 is an apocalyptic number.

It is an amenable number.

199483729 is a deficient number, since it is larger than the sum of its proper divisors (20027567).

199483729 is a wasteful number, since it uses less digits than its factorization.

199483729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616.

The product of its digits is 979776, while the sum is 52.

The square root of 199483729 is about 14123.8708929245. The cubic root of 199483729 is about 584.2999188582.

The spelling of 199483729 in words is "one hundred ninety-nine million, four hundred eighty-three thousand, seven hundred twenty-nine".