849842889 has 16 divisors (see below), whose sum is σ = 1299146112. Its totient is φ = 484069248.

The previous prime is 849842881. The next prime is 849842953. The reversal of 849842889 is 988248948.

849842889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 849842889 - 2³ = 849842881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (849842881) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58074 + ... + 71219.

It is an arithmetic number, because the mean of its divisors is an integer number (81196632).

Almost surely, 2^849842889 is an apocalyptic number.

It is an amenable number.

849842889 is a deficient number, since it is larger than the sum of its proper divisors (449303223).

849842889 is a wasteful number, since it uses less digits than its factorization.

849842889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129616.

The product of its digits is 10616832, while the sum is 60.

The square root of 849842889 is about 29152.0649182867. The cubic root of 849842889 is about 947.2098703504.

The spelling of 849842889 in words is "eight hundred forty-nine million, eight hundred forty-two thousand, eight hundred eighty-nine".