198660299 has 2 divisors, whose sum is σ = 198660300. Its totient is φ = 198660298.

The previous prime is 198660277. The next prime is 198660331. The reversal of 198660299 is 992066891.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198660299 is a prime.

It is not a weakly prime, because it can be changed into another prime (198660899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99330149 + 99330150.

It is an arithmetic number, because the mean of its divisors is an integer number (99330150).

Almost surely, 2^198660299 is an apocalyptic number.

198660299 is a deficient number, since it is larger than the sum of its proper divisors (1).

198660299 is an equidigital number, since it uses as much as digits as its factorization.

198660299 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 419904, while the sum is 50.

The square root of 198660299 is about 14094.6904542101. The cubic root of 198660299 is about 583.4948513460.

The spelling of 198660299 in words is "one hundred ninety-eight million, six hundred sixty thousand, two hundred ninety-nine".