198214487 has 2 divisors, whose sum is σ = 198214488. Its totient is φ = 198214486.

The previous prime is 198214451. The next prime is 198214537. The reversal of 198214487 is 784412891.

198214487 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 198214487 - 2¹⁴ = 198198103 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 (198214187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99107243 + 99107244.

It is an arithmetic number, because the mean of its divisors is an integer number (99107244).

Almost surely, 2^198214487 is an apocalyptic number.

198214487 is a deficient number, since it is larger than the sum of its proper divisors (1).

198214487 is an equidigital number, since it uses as much as digits as its factorization.

198214487 is an evil number, because the sum of its binary digits is even.

The product of its digits is 129024, while the sum is 44.

The square root of 198214487 is about 14078.8666802410. The cubic root of 198214487 is about 583.0580523892.

The spelling of 198214487 in words is "one hundred ninety-eight million, two hundred fourteen thousand, four hundred eighty-seven".