197385247 has 2 divisors, whose sum is σ = 197385248. Its totient is φ = 197385246.

The previous prime is 197385233. The next prime is 197385271. The reversal of 197385247 is 742583791.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 197385247 - 2¹⁹ = 196860959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 197385197 and 197385206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197385347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98692623 + 98692624.

It is an arithmetic number, because the mean of its divisors is an integer number (98692624).

Almost surely, 2^197385247 is an apocalyptic number.

197385247 is a deficient number, since it is larger than the sum of its proper divisors (1).

197385247 is an equidigital number, since it uses as much as digits as its factorization.

197385247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 423360, while the sum is 46.

The square root of 197385247 is about 14049.3860008187. The cubic root of 197385247 is about 582.2438319288.

The spelling of 197385247 in words is "one hundred ninety-seven million, three hundred eighty-five thousand, two hundred forty-seven".