1996197097 has 2 divisors, whose sum is σ = 1996197098. Its totient is φ = 1996197096.

The previous prime is 1996197079. The next prime is 1996197121. The reversal of 1996197097 is 7907916991.

Together with previous prime (1996197079) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1218289216 + 777907881 = 34904^2 + 27891^2 .

It is a cyclic number.

It is not a de Polignac number, because 1996197097 - 2¹⁵ = 1996164329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1996197037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 998098548 + 998098549.

It is an arithmetic number, because the mean of its divisors is an integer number (998098549).

Almost surely, 2^1996197097 is an apocalyptic number.

It is an amenable number.

1996197097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1996197097 is an equidigital number, since it uses as much as digits as its factorization.

1996197097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1928934, while the sum is 58.

The square root of 1996197097 is about 44678.8215712993. The cubic root of 1996197097 is about 1259.1219836287.

The spelling of 1996197097 in words is "one billion, nine hundred ninety-six million, one hundred ninety-seven thousand, ninety-seven".