198887347 has 4 divisors (see below), whose sum is σ = 198947056. Its totient is φ = 198827640.

The previous prime is 198887333. The next prime is 198887357. The reversal of 198887347 is 743788891.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 743788891 = 233 ⋅3192227.

It is a cyclic number.

It is not a de Polignac number, because 198887347 - 2¹¹ = 198885299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (198887327) 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, 24543 + ... + 31624.

It is an arithmetic number, because the mean of its divisors is an integer number (49736764).

Almost surely, 2^198887347 is an apocalyptic number.

198887347 is a deficient number, since it is larger than the sum of its proper divisors (59709).

198887347 is an equidigital number, since it uses as much as digits as its factorization.

198887347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59708.

The product of its digits is 2709504, while the sum is 55.

The square root of 198887347 is about 14102.7425346987. The cubic root of 198887347 is about 583.7170579653.

The spelling of 198887347 in words is "one hundred ninety-eight million, eight hundred eighty-seven thousand, three hundred forty-seven".