198616927 has 2 divisors, whose sum is σ = 198616928. Its totient is φ = 198616926.

The previous prime is 198616843. The next prime is 198616949. The reversal of 198616927 is 729616891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198616927 - 2¹⁵ = 198584159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198616027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99308463 + 99308464.

It is an arithmetic number, because the mean of its divisors is an integer number (99308464).

Almost surely, 2^198616927 is an apocalyptic number.

198616927 is a deficient number, since it is larger than the sum of its proper divisors (1).

198616927 is an equidigital number, since it uses as much as digits as its factorization.

198616927 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 49.

The square root of 198616927 is about 14093.1517766609. The cubic root of 198616927 is about 583.4523849167.

The spelling of 198616927 in words is "one hundred ninety-eight million, six hundred sixteen thousand, nine hundred twenty-seven".