889595988 has 12 divisors (see below), whose sum is σ = 2075724000. Its totient is φ = 296531992.

The previous prime is 889595977. The next prime is 889595989.

889595988 is nontrivially palindromic in base 10.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×889595988² = 1582762043731392288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889595989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37066488 + ... + 37066511.

It is an arithmetic number, because the mean of its divisors is an integer number (172977000).

Almost surely, 2^889595988 is an apocalyptic number.

It is an amenable number.

889595988 is an abundant number, since it is smaller than the sum of its proper divisors (1186128012).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889595988 is a wasteful number, since it uses less digits than its factorization.

889595988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74133006 (or 74133004 counting only the distinct ones).

The product of its digits is 74649600, while the sum is 69.

The square root of 889595988 is about 29826.0957552275. The cubic root of 889595988 is about 961.7545993114.

The spelling of 889595988 in words is "eight hundred eighty-nine million, five hundred ninety-five thousand, nine hundred eighty-eight".