1196672809 has 2 divisors, whose sum is σ = 1196672810. Its totient is φ = 1196672808.

The previous prime is 1196672783. The next prime is 1196672861. The reversal of 1196672809 is 9082766911.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1095610000 + 101062809 = 33100^2 + 10053^2 .

It is a cyclic number.

It is not a de Polignac number, because 1196672809 - 2⁵ = 1196672777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1196672879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 598336404 + 598336405.

It is an arithmetic number, because the mean of its divisors is an integer number (598336405).

Almost surely, 2^1196672809 is an apocalyptic number.

It is an amenable number.

1196672809 is a deficient number, since it is larger than the sum of its proper divisors (1).

1196672809 is an equidigital number, since it uses as much as digits as its factorization.

1196672809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 49.

The square root of 1196672809 is about 34592.9589512086. The cubic root of 1196672809 is about 1061.6755300703.

The spelling of 1196672809 in words is "one billion, one hundred ninety-six million, six hundred seventy-two thousand, eight hundred nine".