199471593 has 16 divisors (see below), whose sum is σ = 268853312. Its totient is φ = 131544000.

The previous prime is 199471567. The next prime is 199471609. The reversal of 199471593 is 395174991.

It is a de Polignac number, because none of the positive numbers 2^k-199471593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (199471513) 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, 113703 + ... + 115443.

It is an arithmetic number, because the mean of its divisors is an integer number (16803332).

Almost surely, 2^199471593 is an apocalyptic number.

It is an amenable number.

199471593 is a deficient number, since it is larger than the sum of its proper divisors (69381719).

199471593 is a wasteful number, since it uses less digits than its factorization.

199471593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2136.

The product of its digits is 306180, while the sum is 48.

The square root of 199471593 is about 14123.4412591266. The cubic root of 199471593 is about 584.2880695917.

The spelling of 199471593 in words is "one hundred ninety-nine million, four hundred seventy-one thousand, five hundred ninety-three".