198026867 has 2 divisors, whose sum is σ = 198026868. Its totient is φ = 198026866.

The previous prime is 198026837. The next prime is 198026887. The reversal of 198026867 is 768620891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198026867 - 2⁸ = 198026611 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (198026827) 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, 99013433 + 99013434.

It is an arithmetic number, because the mean of its divisors is an integer number (99013434).

Almost surely, 2^198026867 is an apocalyptic number.

198026867 is a deficient number, since it is larger than the sum of its proper divisors (1).

198026867 is an equidigital number, since it uses as much as digits as its factorization.

198026867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 47.

The square root of 198026867 is about 14072.2019243614. The cubic root of 198026867 is about 582.8740297057.

The spelling of 198026867 in words is "one hundred ninety-eight million, twenty-six thousand, eight hundred sixty-seven".