198992699 has 2 divisors, whose sum is σ = 198992700. Its totient is φ = 198992698.

The previous prime is 198992669. The next prime is 198992713. The reversal of 198992699 is 996299891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198992699 - 2¹⁶ = 198927163 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198992659) 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, 99496349 + 99496350.

It is an arithmetic number, because the mean of its divisors is an integer number (99496350).

Almost surely, 2^198992699 is an apocalyptic number.

198992699 is a deficient number, since it is larger than the sum of its proper divisors (1).

198992699 is an equidigital number, since it uses as much as digits as its factorization.

198992699 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5668704, while the sum is 62.

The square root of 198992699 is about 14106.4772002084. The cubic root of 198992699 is about 583.8201060900.

The spelling of 198992699 in words is "one hundred ninety-eight million, nine hundred ninety-two thousand, six hundred ninety-nine".