198846911 has 2 divisors, whose sum is σ = 198846912. Its totient is φ = 198846910.

The previous prime is 198846899. The next prime is 198846919. The reversal of 198846911 is 119648891.

It is a strong prime.

It is an emirp because it is prime and its reverse (119648891) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 198846911 - 2²² = 194652607 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 (198846919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99423455 + 99423456.

It is an arithmetic number, because the mean of its divisors is an integer number (99423456).

Almost surely, 2^198846911 is an apocalyptic number.

198846911 is a deficient number, since it is larger than the sum of its proper divisors (1).

198846911 is an equidigital number, since it uses as much as digits as its factorization.

198846911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 47.

The square root of 198846911 is about 14101.3088399623. The cubic root of 198846911 is about 583.6774965702.

The spelling of 198846911 in words is "one hundred ninety-eight million, eight hundred forty-six thousand, nine hundred eleven".