198967 has 2 divisors, whose sum is σ = 198968. Its totient is φ = 198966.

The previous prime is 198959. The next prime is 198971. The reversal of 198967 is 769891.

198967 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198967 - 2³ = 198959 is a prime.

198967 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99483 + 99484.

It is an arithmetic number, because the mean of its divisors is an integer number (99484).

2¹⁹⁸⁹⁶⁷ is an apocalyptic number.

198967 is a deficient number, since it is larger than the sum of its proper divisors (1).

198967 is an equidigital number, since it uses as much as digits as its factorization.

198967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 40.

The square root of 198967 is about 446.0571712236. The cubic root of 198967 is about 58.3794972440.

The spelling of 198967 in words is "one hundred ninety-eight thousand, nine hundred sixty-seven".