1116678197 has 4 divisors (see below), whose sum is σ = 1118368236. Its totient is φ = 1114988160.

The previous prime is 1116678169. The next prime is 1116678229. The reversal of 1116678197 is 7918766111.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 593458321 + 523219876 = 24361^2 + 22874^2 .

It is a cyclic number.

It is not a de Polignac number, because 1116678197 - 2¹⁰ = 1116677173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1116678397) 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 in 3 ways as a sum of consecutive naturals, for example, 844028 + ... + 845349.

It is an arithmetic number, because the mean of its divisors is an integer number (279592059).

Almost surely, 2^1116678197 is an apocalyptic number.

It is an amenable number.

1116678197 is a deficient number, since it is larger than the sum of its proper divisors (1690039).

1116678197 is an equidigital number, since it uses as much as digits as its factorization.

1116678197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1690038.

The product of its digits is 127008, while the sum is 47.

The square root of 1116678197 is about 33416.7352833876. The cubic root of 1116678197 is about 1037.4711106680.

The spelling of 1116678197 in words is "one billion, one hundred sixteen million, six hundred seventy-eight thousand, one hundred ninety-seven".