198039801 has 8 divisors (see below), whose sum is σ = 264399520. Its totient is φ = 131853312.

The previous prime is 198039791. The next prime is 198039857. The reversal of 198039801 is 108930891.

It is a happy number.

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

It is not a de Polignac number, because 198039801 - 2⁵ = 198039769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 198039801.

It is not an unprimeable number, because it can be changed into a prime (198039871) 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, 40615 + ... + 45228.

It is an arithmetic number, because the mean of its divisors is an integer number (33049940).

Almost surely, 2^198039801 is an apocalyptic number.

It is an amenable number.

198039801 is a deficient number, since it is larger than the sum of its proper divisors (66359719).

198039801 is an equidigital number, since it uses as much as digits as its factorization.

198039801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86615.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 198039801 is about 14072.6614753571. The cubic root of 198039801 is about 582.8867194461.

The spelling of 198039801 in words is "one hundred ninety-eight million, thirty-nine thousand, eight hundred one".