198558067 has 2 divisors, whose sum is σ = 198558068. Its totient is φ = 198558066.

The previous prime is 198558053. The next prime is 198558089. The reversal of 198558067 is 760855891.

It is a weak prime.

It is an emirp because it is prime and its reverse (760855891) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198558067 is a prime.

It is a super-3 number, since 3×198558067³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 198558067.

It is not a weakly prime, because it can be changed into another prime (198558167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99279033 + 99279034.

It is an arithmetic number, because the mean of its divisors is an integer number (99279034).

Almost surely, 2^198558067 is an apocalyptic number.

198558067 is a deficient number, since it is larger than the sum of its proper divisors (1).

198558067 is an equidigital number, since it uses as much as digits as its factorization.

198558067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 604800, while the sum is 49.

The square root of 198558067 is about 14091.0633736422. The cubic root of 198558067 is about 583.3947439747.

The spelling of 198558067 in words is "one hundred ninety-eight million, five hundred fifty-eight thousand, sixty-seven".