1110899689 has 2 divisors, whose sum is σ = 1110899690. Its totient is φ = 1110899688.

The previous prime is 1110899687. The next prime is 1110899753. The reversal of 1110899689 is 9869980111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 610930089 + 499969600 = 24717^2 + 22360^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110899689 - 2¹ = 1110899687 is a prime.

Together with 1110899687, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1110899683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555449844 + 555449845.

It is an arithmetic number, because the mean of its divisors is an integer number (555449845).

Almost surely, 2^1110899689 is an apocalyptic number.

It is an amenable number.

1110899689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110899689 is an equidigital number, since it uses as much as digits as its factorization.

1110899689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 52.

The square root of 1110899689 is about 33330.1618507921. The cubic root of 1110899689 is about 1035.6784707185.

The spelling of 1110899689 in words is "one billion, one hundred ten million, eight hundred ninety-nine thousand, six hundred eighty-nine".