197696533 has 2 divisors, whose sum is σ = 197696534. Its totient is φ = 197696532.

The previous prime is 197696497. The next prime is 197696537. The reversal of 197696533 is 335696791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197627364 + 69169 = 14058^2 + 263^2 .

It is a cyclic number.

It is not a de Polignac number, because 197696533 - 2¹³ = 197688341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197696537) 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, 98848266 + 98848267.

It is an arithmetic number, because the mean of its divisors is an integer number (98848267).

Almost surely, 2^197696533 is an apocalyptic number.

It is an amenable number.

197696533 is a deficient number, since it is larger than the sum of its proper divisors (1).

197696533 is an equidigital number, since it uses as much as digits as its factorization.

197696533 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 918540, while the sum is 49.

The square root of 197696533 is about 14060.4599142418. The cubic root of 197696533 is about 582.5497466525.

The spelling of 197696533 in words is "one hundred ninety-seven million, six hundred ninety-six thousand, five hundred thirty-three".