849696889 has 4 divisors (see below), whose sum is σ = 886640256. Its totient is φ = 812753524.

The previous prime is 849696857. The next prime is 849696893. The reversal of 849696889 is 988696948.

849696889 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is a cyclic number.

It is not a de Polignac number, because 849696889 - 2⁵ = 849696857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (849696829) 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, 18471649 + ... + 18471694.

It is an arithmetic number, because the mean of its divisors is an integer number (221660064).

Almost surely, 2^849696889 is an apocalyptic number.

It is an amenable number.

849696889 is a deficient number, since it is larger than the sum of its proper divisors (36943367).

849696889 is a wasteful number, since it uses less digits than its factorization.

849696889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36943366.

The product of its digits is 53747712, while the sum is 67.

The square root of 849696889 is about 29149.5606999488. The cubic root of 849696889 is about 947.1556248097.

The spelling of 849696889 in words is "eight hundred forty-nine million, six hundred ninety-six thousand, eight hundred eighty-nine".