198295997 has 8 divisors (see below), whose sum is σ = 205338240. Its totient is φ = 191267440.

The previous prime is 198295963. The next prime is 198296003. The reversal of 198295997 is 799592891.

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 198295997 - 2¹⁸ = 198033853 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 (198295907) 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, 32672 + ... + 38262.

It is an arithmetic number, because the mean of its divisors is an integer number (25667280).

Almost surely, 2^198295997 is an apocalyptic number.

It is an amenable number.

198295997 is a deficient number, since it is larger than the sum of its proper divisors (7042243).

198295997 is a wasteful number, since it uses less digits than its factorization.

198295997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6843.

The product of its digits is 3674160, while the sum is 59.

The square root of 198295997 is about 14081.7611469589. The cubic root of 198295997 is about 583.1379633813.

It can be divided in two parts, 1982 and 95997, that added together give a palindrome (97979).

The spelling of 198295997 in words is "one hundred ninety-eight million, two hundred ninety-five thousand, nine hundred ninety-seven".