199832047 has 2 divisors, whose sum is σ = 199832048. Its totient is φ = 199832046.

The previous prime is 199832029. The next prime is 199832053. The reversal of 199832047 is 740238991.

It is a strong prime.

It is an emirp because it is prime and its reverse (740238991) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 199832047 - 2¹⁵ = 199799279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 199831994 and 199832012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (199832077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99916023 + 99916024.

It is an arithmetic number, because the mean of its divisors is an integer number (99916024).

Almost surely, 2^199832047 is an apocalyptic number.

199832047 is a deficient number, since it is larger than the sum of its proper divisors (1).

199832047 is an equidigital number, since it uses as much as digits as its factorization.

199832047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 199832047 is about 14136.1963413077. The cubic root of 199832047 is about 584.6398026145.

The spelling of 199832047 in words is "one hundred ninety-nine million, eight hundred thirty-two thousand, forty-seven".