198924653 has 2 divisors, whose sum is σ = 198924654. Its totient is φ = 198924652.

The previous prime is 198924589. The next prime is 198924683. The reversal of 198924653 is 356429891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176438089 + 22486564 = 13283^2 + 4742^2 .

It is a cyclic number.

It is not a de Polignac number, because 198924653 - 2⁶ = 198924589 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 198924598 and 198924607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (198924683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99462326 + 99462327.

It is an arithmetic number, because the mean of its divisors is an integer number (99462327).

Almost surely, 2^198924653 is an apocalyptic number.

It is an amenable number.

198924653 is a deficient number, since it is larger than the sum of its proper divisors (1).

198924653 is an equidigital number, since it uses as much as digits as its factorization.

198924653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 466560, while the sum is 47.

The square root of 198924653 is about 14104.0651232189. The cubic root of 198924653 is about 583.7535523049.

The spelling of 198924653 in words is "one hundred ninety-eight million, nine hundred twenty-four thousand, six hundred fifty-three".