198865367 has 2 divisors, whose sum is σ = 198865368. Its totient is φ = 198865366.

The previous prime is 198865351. The next prime is 198865399. The reversal of 198865367 is 763568891.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198865367 - 2⁴ = 198865351 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198805367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99432683 + 99432684.

It is an arithmetic number, because the mean of its divisors is an integer number (99432684).

Almost surely, 2^198865367 is an apocalyptic number.

198865367 is a deficient number, since it is larger than the sum of its proper divisors (1).

198865367 is an equidigital number, since it uses as much as digits as its factorization.

198865367 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2177280, while the sum is 53.

The square root of 198865367 is about 14101.9632321177. The cubic root of 198865367 is about 583.6955540439.

The spelling of 198865367 in words is "one hundred ninety-eight million, eight hundred sixty-five thousand, three hundred sixty-seven".