889619944 has 16 divisors (see below), whose sum is σ = 1740561120. Its totient is φ = 425470320.

The previous prime is 889619923. The next prime is 889619981. The reversal of 889619944 is 449916988.

It is a happy number.

It is an unprimeable number.

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, 2417262 + ... + 2417629.

It is an arithmetic number, because the mean of its divisors is an integer number (108785070).

Almost surely, 2^889619944 is an apocalyptic number.

It is an amenable number.

889619944 is a deficient number, since it is larger than the sum of its proper divisors (850941176).

889619944 is a wasteful number, since it uses less digits than its factorization.

889619944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4834920 (or 4834916 counting only the distinct ones).

The product of its digits is 4478976, while the sum is 58.

The square root of 889619944 is about 29826.4973471576. The cubic root of 889619944 is about 961.7632322889.

The spelling of 889619944 in words is "eight hundred eighty-nine million, six hundred nineteen thousand, nine hundred forty-four".