197268077 has 2 divisors, whose sum is σ = 197268078. Its totient is φ = 197268076.

The previous prime is 197268073. The next prime is 197268131. The reversal of 197268077 is 770862791.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110796676 + 86471401 = 10526^2 + 9299^2 .

It is a cyclic number.

It is not a de Polignac number, because 197268077 - 2² = 197268073 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (197268073) 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, 98634038 + 98634039.

It is an arithmetic number, because the mean of its divisors is an integer number (98634039).

Almost surely, 2^197268077 is an apocalyptic number.

It is an amenable number.

197268077 is a deficient number, since it is larger than the sum of its proper divisors (1).

197268077 is an equidigital number, since it uses as much as digits as its factorization.

197268077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 47.

The square root of 197268077 is about 14045.2154486857. The cubic root of 197268077 is about 582.1286003968.

The spelling of 197268077 in words is "one hundred ninety-seven million, two hundred sixty-eight thousand, seventy-seven".