198859607 has 8 divisors (see below), whose sum is σ = 202716432. Its totient is φ = 195040000.

The previous prime is 198859597. The next prime is 198859613. The reversal of 198859607 is 706958891.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198859607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198859627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1607 + ... + 20007.

It is an arithmetic number, because the mean of its divisors is an integer number (25339554).

Almost surely, 2^198859607 is an apocalyptic number.

198859607 is a deficient number, since it is larger than the sum of its proper divisors (3856825).

198859607 is a wasteful number, since it uses less digits than its factorization.

198859607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18609.

The product of its (nonzero) digits is 1088640, while the sum is 53.

The square root of 198859607 is about 14101.7590037555. The cubic root of 198859607 is about 583.6899185414.

It can be divided in two parts, 19885 and 9607, that added together give a palindrome (29492).

The spelling of 198859607 in words is "one hundred ninety-eight million, eight hundred fifty-nine thousand, six hundred seven".