198048839 has 2 divisors, whose sum is σ = 198048840. Its totient is φ = 198048838.

The previous prime is 198048821. The next prime is 198048857. The reversal of 198048839 is 938840891.

It is a balanced prime because it is at equal distance from previous prime (198048821) and next prime (198048857).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198048839 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198048869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99024419 + 99024420.

It is an arithmetic number, because the mean of its divisors is an integer number (99024420).

Almost surely, 2^198048839 is an apocalyptic number.

198048839 is a deficient number, since it is larger than the sum of its proper divisors (1).

198048839 is an equidigital number, since it uses as much as digits as its factorization.

198048839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 50.

The square root of 198048839 is about 14072.9825907659. The cubic root of 198048839 is about 582.8955864348.

The spelling of 198048839 in words is "one hundred ninety-eight million, forty-eight thousand, eight hundred thirty-nine".