846668889 has 16 divisors (see below), whose sum is σ = 1368354240. Its totient is φ = 513132480.

The previous prime is 846668873. The next prime is 846668897. The reversal of 846668889 is 988866648.

846668889 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 846668889 - 2⁴ = 846668873 is a prime.

It is not an unprimeable number, because it can be changed into a prime (846668489) 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, 1425072 + ... + 1425665.

It is an arithmetic number, because the mean of its divisors is an integer number (85522140).

Almost surely, 2^846668889 is an apocalyptic number.

It is an amenable number.

846668889 is a deficient number, since it is larger than the sum of its proper divisors (521685351).

846668889 is a wasteful number, since it uses less digits than its factorization.

846668889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2850757 (or 2850751 counting only the distinct ones).

The product of its digits is 31850496, while the sum is 63.

The square root of 846668889 is about 29097.5753113554. The cubic root of 846668889 is about 946.0291835893.

The spelling of 846668889 in words is "eight hundred forty-six million, six hundred sixty-eight thousand, eight hundred eighty-nine".