198376997 has 8 divisors (see below), whose sum is σ = 244156416. Its totient is φ = 156957552.

The previous prime is 198376987. The next prime is 198376999. The reversal of 198376997 is 799673891.

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 198376997 - 2⁸ = 198376741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198376999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1089893 + ... + 1090074.

It is an arithmetic number, because the mean of its divisors is an integer number (30519552).

Almost surely, 2^198376997 is an apocalyptic number.

It is an amenable number.

198376997 is a deficient number, since it is larger than the sum of its proper divisors (45779419).

198376997 is a wasteful number, since it uses less digits than its factorization.

198376997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2179987.

The product of its digits is 5143824, while the sum is 59.

The square root of 198376997 is about 14084.6369140280. The cubic root of 198376997 is about 583.2173526878.

The spelling of 198376997 in words is "one hundred ninety-eight million, three hundred seventy-six thousand, nine hundred ninety-seven".