889639432 has 48 divisors (see below), whose sum is σ = 1930042800. Its totient is φ = 383090400.

The previous prime is 889639423. The next prime is 889639459. The reversal of 889639432 is 234936988.

It is a self number, because there is not a number n which added to its sum of digits gives 889639432.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 5794 + ... + 42577.

It is an arithmetic number, because the mean of its divisors is an integer number (40209225).

Almost surely, 2^889639432 is an apocalyptic number.

It is an amenable number.

889639432 is an abundant number, since it is smaller than the sum of its proper divisors (1040403368).

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

889639432 is a wasteful number, since it uses less digits than its factorization.

889639432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48418 (or 48403 counting only the distinct ones).

The product of its digits is 2239488, while the sum is 52.

The square root of 889639432 is about 29826.8240347510. The cubic root of 889639432 is about 961.7702550275.

The spelling of 889639432 in words is "eight hundred eighty-nine million, six hundred thirty-nine thousand, four hundred thirty-two".