198616343 has 2 divisors, whose sum is σ = 198616344. Its totient is φ = 198616342.

The previous prime is 198616309. The next prime is 198616357. The reversal of 198616343 is 343616891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 198616343 - 2¹⁸ = 198354199 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198616343.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198616303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99308171 + 99308172.

It is an arithmetic number, because the mean of its divisors is an integer number (99308172).

Almost surely, 2^198616343 is an apocalyptic number.

198616343 is a deficient number, since it is larger than the sum of its proper divisors (1).

198616343 is an equidigital number, since it uses as much as digits as its factorization.

198616343 is an evil number, because the sum of its binary digits is even.

The product of its digits is 93312, while the sum is 41.

The square root of 198616343 is about 14093.1310573627. The cubic root of 198616343 is about 583.4518130680.

The spelling of 198616343 in words is "one hundred ninety-eight million, six hundred sixteen thousand, three hundred forty-three".