197604097 has 2 divisors, whose sum is σ = 197604098. Its totient is φ = 197604096.

The previous prime is 197604067. The next prime is 197604101. The reversal of 197604097 is 790406791.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 164839921 + 32764176 = 12839^2 + 5724^2 .

It is an emirp because it is prime and its reverse (790406791) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 197604097 - 2¹⁹ = 197079809 is a prime.

It is not a weakly prime, because it can be changed into another prime (197604067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98802048 + 98802049.

It is an arithmetic number, because the mean of its divisors is an integer number (98802049).

Almost surely, 2^197604097 is an apocalyptic number.

It is an amenable number.

197604097 is a deficient number, since it is larger than the sum of its proper divisors (1).

197604097 is an equidigital number, since it uses as much as digits as its factorization.

197604097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 197604097 is about 14057.1724397192. The cubic root of 197604097 is about 582.4589391872.

The spelling of 197604097 in words is "one hundred ninety-seven million, six hundred four thousand, ninety-seven".