889216481 has 4 divisors (see below), whose sum is σ = 889279764. Its totient is φ = 889153200.

The previous prime is 889216439. The next prime is 889216483. The reversal of 889216481 is 184612988.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 878588881 + 10627600 = 29641^2 + 3260^2 .

It is a cyclic number.

It is not a de Polignac number, because 889216481 - 2²⁶ = 822107617 is a prime.

It is a super-2 number, since 2×889216481² = 1581411900164046722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889216483) 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, 50 + ... + 42171.

It is an arithmetic number, because the mean of its divisors is an integer number (222319941).

Almost surely, 2^889216481 is an apocalyptic number.

It is an amenable number.

889216481 is a deficient number, since it is larger than the sum of its proper divisors (63283).

889216481 is a wasteful number, since it uses less digits than its factorization.

889216481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63282.

The product of its digits is 221184, while the sum is 47.

The square root of 889216481 is about 29819.7330806297. The cubic root of 889216481 is about 961.6178164262.

The spelling of 889216481 in words is "eight hundred eighty-nine million, two hundred sixteen thousand, four hundred eighty-one".