1117846889 has 4 divisors (see below), whose sum is σ = 1117998720. Its totient is φ = 1117695060.

The previous prime is 1117846867. The next prime is 1117846901. The reversal of 1117846889 is 9886487111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9886487111 = 101 ⋅97886011.

It is a cyclic number.

It is not a de Polignac number, because 1117846889 - 2⁸ = 1117846633 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1117846889.

It is not an unprimeable number, because it can be changed into a prime (1117846819) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64277 + ... + 79794.

It is an arithmetic number, because the mean of its divisors is an integer number (279499680).

Almost surely, 2^1117846889 is an apocalyptic number.

It is an amenable number.

1117846889 is a deficient number, since it is larger than the sum of its proper divisors (151831).

1117846889 is an equidigital number, since it uses as much as digits as its factorization.

1117846889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151830.

The product of its digits is 774144, while the sum is 53.

The square root of 1117846889 is about 33434.2173379309. The cubic root of 1117846889 is about 1037.8329163190.

The spelling of 1117846889 in words is "one billion, one hundred seventeen million, eight hundred forty-six thousand, eight hundred eighty-nine".