889346728 has 8 divisors (see below), whose sum is σ = 1667525130. Its totient is φ = 444673360.

The previous prime is 889346723. The next prime is 889346747. The reversal of 889346728 is 827643988.

It can be written as a sum of positive squares in only one way, i.e., 647295364 + 242051364 = 25442^2 + 15558^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (889346723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55584163 + ... + 55584178.

Almost surely, 2^889346728 is an apocalyptic number.

It is an amenable number.

889346728 is a deficient number, since it is larger than the sum of its proper divisors (778178402).

889346728 is a wasteful number, since it uses less digits than its factorization.

889346728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111168347 (or 111168343 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 55.

The square root of 889346728 is about 29821.9169068657. The cubic root of 889346728 is about 961.6647647692.

The spelling of 889346728 in words is "eight hundred eighty-nine million, three hundred forty-six thousand, seven hundred twenty-eight".