889349681 has 8 divisors (see below), whose sum is σ = 971720928. Its totient is φ = 807232000.

The previous prime is 889349647. The next prime is 889349761. The reversal of 889349681 is 186943988.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-889349681 is a prime.

It is a super-2 number, since 2×889349681² = 1581885710189603522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889349281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56015 + ... + 70116.

It is an arithmetic number, because the mean of its divisors is an integer number (121465116).

Almost surely, 2^889349681 is an apocalyptic number.

It is an amenable number.

889349681 is a deficient number, since it is larger than the sum of its proper divisors (82371247).

889349681 is a wasteful number, since it uses less digits than its factorization.

889349681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126783.

The product of its digits is 2985984, while the sum is 56.

The square root of 889349681 is about 29821.9664173911. The cubic root of 889349681 is about 961.6658291434.

The spelling of 889349681 in words is "eight hundred eighty-nine million, three hundred forty-nine thousand, six hundred eighty-one".