197104811 has 2 divisors, whose sum is σ = 197104812. Its totient is φ = 197104810.

The previous prime is 197104801. The next prime is 197104813. The reversal of 197104811 is 118401791.

It is a strong prime.

It is an emirp because it is prime and its reverse (118401791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197104811 - 2²² = 192910507 is a prime.

It is a Sophie Germain prime.

Together with 197104813, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (197104813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98552405 + 98552406.

It is an arithmetic number, because the mean of its divisors is an integer number (98552406).

Almost surely, 2^197104811 is an apocalyptic number.

197104811 is a deficient number, since it is larger than the sum of its proper divisors (1).

197104811 is an equidigital number, since it uses as much as digits as its factorization.

197104811 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 32.

The square root of 197104811 is about 14039.4020884082. The cubic root of 197104811 is about 581.9679593687.

The spelling of 197104811 in words is "one hundred ninety-seven million, one hundred four thousand, eight hundred eleven".