1169798609 has 12 divisors (see below), whose sum is σ = 1404684288. Its totient is φ = 970338600.

The previous prime is 1169798551. The next prime is 1169798621. The reversal of 1169798609 is 9068979611.

It is not a de Polignac number, because 1169798609 - 2⁸ = 1169798353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1169798659) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 383537 + ... + 386574.

It is an arithmetic number, because the mean of its divisors is an integer number (117057024).

Almost surely, 2^1169798609 is an apocalyptic number.

It is an amenable number.

1169798609 is a deficient number, since it is larger than the sum of its proper divisors (234885679).

1169798609 is an equidigital number, since it uses as much as digits as its factorization.

1169798609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 770156 (or 770149 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 56.

The square root of 1169798609 is about 34202.3187664228. The cubic root of 1169798609 is about 1053.6677804764.

The spelling of 1169798609 in words is "one billion, one hundred sixty-nine million, seven hundred ninety-eight thousand, six hundred nine".