1109967889 has 2 divisors, whose sum is σ = 1109967890. Its totient is φ = 1109967888.

The previous prime is 1109967871. The next prime is 1109967899. The reversal of 1109967889 is 9887699011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 725494225 + 384473664 = 26935^2 + 19608^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109967889 - 2⁹ = 1109967377 is a prime.

It is a super-2 number, since 2×1109967889² = 2464057429222232642, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1109967829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554983944 + 554983945.

It is an arithmetic number, because the mean of its divisors is an integer number (554983945).

Almost surely, 2^1109967889 is an apocalyptic number.

It is an amenable number.

1109967889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109967889 is an equidigital number, since it uses as much as digits as its factorization.

1109967889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 58.

The square root of 1109967889 is about 33316.1805884168. The cubic root of 1109967889 is about 1035.3888210605.

The spelling of 1109967889 in words is "one billion, one hundred nine million, nine hundred sixty-seven thousand, eight hundred eighty-nine".