198364867 has 2 divisors, whose sum is σ = 198364868. Its totient is φ = 198364866.

The previous prime is 198364861. The next prime is 198365039. The reversal of 198364867 is 768463891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198364867 - 2⁷ = 198364739 is a prime.

It is not a weakly prime, because it can be changed into another prime (198364861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99182433 + 99182434.

It is an arithmetic number, because the mean of its divisors is an integer number (99182434).

Almost surely, 2^198364867 is an apocalyptic number.

198364867 is a deficient number, since it is larger than the sum of its proper divisors (1).

198364867 is an equidigital number, since it uses as much as digits as its factorization.

198364867 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 52.

The square root of 198364867 is about 14084.2062964159. The cubic root of 198364867 is about 583.2054652701.

The spelling of 198364867 in words is "one hundred ninety-eight million, three hundred sixty-four thousand, eight hundred sixty-seven".