197047793 has 2 divisors, whose sum is σ = 197047794. Its totient is φ = 197047792.

The previous prime is 197047783. The next prime is 197047817. The reversal of 197047793 is 397740791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 187909264 + 9138529 = 13708^2 + 3023^2 .

It is a cyclic number.

It is not a de Polignac number, because 197047793 - 2¹² = 197043697 is a prime.

It is not a weakly prime, because it can be changed into another prime (197047703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98523896 + 98523897.

It is an arithmetic number, because the mean of its divisors is an integer number (98523897).

Almost surely, 2^197047793 is an apocalyptic number.

It is an amenable number.

197047793 is a deficient number, since it is larger than the sum of its proper divisors (1).

197047793 is an equidigital number, since it uses as much as digits as its factorization.

197047793 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 333396, while the sum is 47.

The square root of 197047793 is about 14037.3712994991. The cubic root of 197047793 is about 581.9118371984.

The spelling of 197047793 in words is "one hundred ninety-seven million, forty-seven thousand, seven hundred ninety-three".