197387353 has 2 divisors, whose sum is σ = 197387354. Its totient is φ = 197387352.

The previous prime is 197387327. The next prime is 197387381. The reversal of 197387353 is 353783791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 133818624 + 63568729 = 11568^2 + 7973^2 .

It is an emirp because it is prime and its reverse (353783791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197387353 - 2⁹ = 197386841 is a prime.

It is not a weakly prime, because it can be changed into another prime (197387053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98693676 + 98693677.

It is an arithmetic number, because the mean of its divisors is an integer number (98693677).

Almost surely, 2^197387353 is an apocalyptic number.

It is an amenable number.

197387353 is a deficient number, since it is larger than the sum of its proper divisors (1).

197387353 is an equidigital number, since it uses as much as digits as its factorization.

197387353 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 46.

The square root of 197387353 is about 14049.4609505134. The cubic root of 197387353 is about 582.2459026698.

The spelling of 197387353 in words is "one hundred ninety-seven million, three hundred eighty-seven thousand, three hundred fifty-three".