199374047 has 16 divisors (see below), whose sum is σ = 208593792. Its totient is φ = 190417920.

The previous prime is 199374037. The next prime is 199374053. The reversal of 199374047 is 740473991.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 199374047 - 2⁴ = 199374031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 199373989 and 199374007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199374017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 564623 + ... + 564975.

It is an arithmetic number, because the mean of its divisors is an integer number (13037112).

Almost surely, 2^199374047 is an apocalyptic number.

199374047 is a deficient number, since it is larger than the sum of its proper divisors (9219745).

199374047 is a wasteful number, since it uses less digits than its factorization.

199374047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 199374047 is about 14119.9874999945. The cubic root of 199374047 is about 584.1928108194.

The spelling of 199374047 in words is "one hundred ninety-nine million, three hundred seventy-four thousand, forty-seven".