889136873 has 4 divisors (see below), whose sum is σ = 941439060. Its totient is φ = 836834688.

The previous prime is 889136849. The next prime is 889136881. The reversal of 889136873 is 378631988.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 517881049 + 371255824 = 22757^2 + 19268^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889136873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889136813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26151068 + ... + 26151101.

It is an arithmetic number, because the mean of its divisors is an integer number (235359765).

Almost surely, 2^889136873 is an apocalyptic number.

It is an amenable number.

889136873 is a deficient number, since it is larger than the sum of its proper divisors (52302187).

889136873 is a wasteful number, since it uses less digits than its factorization.

889136873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52302186.

The product of its digits is 1741824, while the sum is 53.

The square root of 889136873 is about 29818.3982299519. The cubic root of 889136873 is about 961.5891189690.

The spelling of 889136873 in words is "eight hundred eighty-nine million, one hundred thirty-six thousand, eight hundred seventy-three".