889668655 has 8 divisors (see below), whose sum is σ = 1076009472. Its totient is φ = 706130208.

The previous prime is 889668643. The next prime is 889668677. The reversal of 889668655 is 556866988.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 889668655 - 2¹¹ = 889666607 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 889668593 and 889668602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 699892 + ... + 701161.

It is an arithmetic number, because the mean of its divisors is an integer number (134501184).

Almost surely, 2^889668655 is an apocalyptic number.

889668655 is a deficient number, since it is larger than the sum of its proper divisors (186340817).

889668655 is a wasteful number, since it uses less digits than its factorization.

889668655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1401185.

The product of its digits is 24883200, while the sum is 61.

The square root of 889668655 is about 29827.3139085637. The cubic root of 889668655 is about 961.7807857000.

The spelling of 889668655 in words is "eight hundred eighty-nine million, six hundred sixty-eight thousand, six hundred fifty-five".