198582793 has 2 divisors, whose sum is σ = 198582794. Its totient is φ = 198582792.

The previous prime is 198582781. The next prime is 198582799. The reversal of 198582793 is 397285891.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166229449 + 32353344 = 12893^2 + 5688^2 .

It is a cyclic number.

It is not a de Polignac number, because 198582793 - 2²⁵ = 165028361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 198582793.

It is not a weakly prime, because it can be changed into another prime (198582799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 99291396 + 99291397.

It is an arithmetic number, because the mean of its divisors is an integer number (99291397).

Almost surely, 2^198582793 is an apocalyptic number.

It is an amenable number.

198582793 is a deficient number, since it is larger than the sum of its proper divisors (1).

198582793 is an equidigital number, since it uses as much as digits as its factorization.

198582793 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 52.

The square root of 198582793 is about 14091.9407109170. The cubic root of 198582793 is about 583.4189592583.

The spelling of 198582793 in words is "one hundred ninety-eight million, five hundred eighty-two thousand, seven hundred ninety-three".