198245347 has 4 divisors (see below), whose sum is σ = 209906856. Its totient is φ = 186583840.

The previous prime is 198245323. The next prime is 198245357. The reversal of 198245347 is 743542891.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-198245347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198245357) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5830729 + ... + 5830762.

It is an arithmetic number, because the mean of its divisors is an integer number (52476714).

Almost surely, 2^198245347 is an apocalyptic number.

198245347 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

198245347 is a deficient number, since it is larger than the sum of its proper divisors (11661509).

198245347 is a wasteful number, since it uses less digits than its factorization.

198245347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11661508.

The product of its digits is 241920, while the sum is 43.

The square root of 198245347 is about 14079.9626064844. The cubic root of 198245347 is about 583.0883095752.

The spelling of 198245347 in words is "one hundred ninety-eight million, two hundred forty-five thousand, three hundred forty-seven".