198739327 has 2 divisors, whose sum is σ = 198739328. Its totient is φ = 198739326.

The previous prime is 198739319. The next prime is 198739381. The reversal of 198739327 is 723937891.

It is a weak prime.

It is an emirp because it is prime and its reverse (723937891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198739327 - 2³ = 198739319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198739397) 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 as a sum of consecutive naturals, namely, 99369663 + 99369664.

It is an arithmetic number, because the mean of its divisors is an integer number (99369664).

Almost surely, 2^198739327 is an apocalyptic number.

198739327 is a deficient number, since it is larger than the sum of its proper divisors (1).

198739327 is an equidigital number, since it uses as much as digits as its factorization.

198739327 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 198739327 is about 14097.4936424884. The cubic root of 198739327 is about 583.5722134194.

It can be divided in two parts, 1987 and 39327, that added together give a palindrome (41314).

The spelling of 198739327 in words is "one hundred ninety-eight million, seven hundred thirty-nine thousand, three hundred twenty-seven".