198613597 has 8 divisors (see below), whose sum is σ = 244447616. Its totient is φ = 157144752.

The previous prime is 198613589. The next prime is 198613607. The reversal of 198613597 is 795316891.

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 198613597 - 2³ = 198613589 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198613597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198613537) 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, 1091193 + ... + 1091374.

It is an arithmetic number, because the mean of its divisors is an integer number (30555952).

Almost surely, 2^198613597 is an apocalyptic number.

It is an amenable number.

198613597 is a deficient number, since it is larger than the sum of its proper divisors (45834019).

198613597 is a wasteful number, since it uses less digits than its factorization.

198613597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2182587.

The product of its digits is 408240, while the sum is 49.

The square root of 198613597 is about 14093.0336336787. The cubic root of 198613597 is about 583.4491241888.

The spelling of 198613597 in words is "one hundred ninety-eight million, six hundred thirteen thousand, five hundred ninety-seven".