889151989 has 8 divisors (see below), whose sum is σ = 970957440. Its totient is φ = 807508800.

The previous prime is 889151981. The next prime is 889151993. The reversal of 889151989 is 989151988.

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 889151989 - 2³ = 889151981 is a prime.

It is a super-2 number, since 2×889151989² = 1581182519085312242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (889151981) 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, 28957 + ... + 51154.

It is an arithmetic number, because the mean of its divisors is an integer number (121369680).

Almost surely, 2^889151989 is an apocalyptic number.

It is an amenable number.

889151989 is a deficient number, since it is larger than the sum of its proper divisors (81805451).

889151989 is a wasteful number, since it uses less digits than its factorization.

889151989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81131.

The product of its digits is 1866240, while the sum is 58.

The square root of 889151989 is about 29818.6516965472. The cubic root of 889151989 is about 961.5945681858.

Subtracting 889151989 from its reverse (989151988), we obtain a palindrome (99999999).

The spelling of 889151989 in words is "eight hundred eighty-nine million, one hundred fifty-one thousand, nine hundred eighty-nine".