197696773 has 2 divisors, whose sum is σ = 197696774. Its totient is φ = 197696772.

The previous prime is 197696743. The next prime is 197696813. The reversal of 197696773 is 377696791.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129436129 + 68260644 = 11377^2 + 8262^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-197696773 is a prime.

It is a super-2 number, since 2×197696773² = 78168028109227058, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197696743) 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, 98848386 + 98848387.

It is an arithmetic number, because the mean of its divisors is an integer number (98848387).

Almost surely, 2^197696773 is an apocalyptic number.

It is an amenable number.

197696773 is a deficient number, since it is larger than the sum of its proper divisors (1).

197696773 is an equidigital number, since it uses as much as digits as its factorization.

197696773 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3000564, while the sum is 55.

The square root of 197696773 is about 14060.4684488107. The cubic root of 197696773 is about 582.5499823873.

The spelling of 197696773 in words is "one hundred ninety-seven million, six hundred ninety-six thousand, seven hundred seventy-three".