889644169 has 8 divisors (see below), whose sum is σ = 943163648. Its totient is φ = 837676080.

The previous prime is 889644143. The next prime is 889644227. The reversal of 889644169 is 961446988.

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 889644169 - 2⁵ = 889644137 is a prime.

It is a super-2 number, since 2×889644169² = 1582933494871401122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (889644109) 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 7 ways as a sum of consecutive naturals, for example, 386667 + ... + 388960.

It is an arithmetic number, because the mean of its divisors is an integer number (117895456).

Almost surely, 2^889644169 is an apocalyptic number.

It is an amenable number.

889644169 is a deficient number, since it is larger than the sum of its proper divisors (53519479).

889644169 is a wasteful number, since it uses less digits than its factorization.

889644169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775695.

The product of its digits is 2985984, while the sum is 55.

The square root of 889644169 is about 29826.9034430328. The cubic root of 889644169 is about 961.7719620478.

The spelling of 889644169 in words is "eight hundred eighty-nine million, six hundred forty-four thousand, one hundred sixty-nine".