198075387 has 8 divisors (see below), whose sum is σ = 270542160. Its totient is φ = 128829440.

The previous prime is 198075301. The next prime is 198075391. The reversal of 198075387 is 783570891.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 198075387 - 2⁸ = 198075131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198075187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 805062 + ... + 805307.

It is an arithmetic number, because the mean of its divisors is an integer number (33817770).

Almost surely, 2^198075387 is an apocalyptic number.

198075387 is a deficient number, since it is larger than the sum of its proper divisors (72466773).

198075387 is a wasteful number, since it uses less digits than its factorization.

198075387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1610413.

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 198075387 is about 14073.9257849400. The cubic root of 198075387 is about 582.9216305505.

The spelling of 198075387 in words is "one hundred ninety-eight million, seventy-five thousand, three hundred eighty-seven".