889431880 has 16 divisors (see below), whose sum is σ = 2001221820. Its totient is φ = 355772736.

The previous prime is 889431877. The next prime is 889431889. The reversal of 889431880 is 88134988.

It can be written as a sum of positive squares in 2 ways, for example, as 866831364 + 22600516 = 29442^2 + 4754^2 .

It is not an unprimeable number, because it can be changed into a prime (889431889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11117859 + ... + 11117938.

Almost surely, 2^889431880 is an apocalyptic number.

It is an amenable number.

889431880 is an abundant number, since it is smaller than the sum of its proper divisors (1111789940).

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

889431880 is a wasteful number, since it uses less digits than its factorization.

889431880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22235808 (or 22235804 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The square root of 889431880 is about 29823.3445475185. The cubic root of 889431880 is about 961.6954558605.

The spelling of 889431880 in words is "eight hundred eighty-nine million, four hundred thirty-one thousand, eight hundred eighty".