889454656 has 56 divisors (see below), whose sum is σ = 1850343264. Its totient is φ = 423736320.

The previous prime is 889454633. The next prime is 889454659. The reversal of 889454656 is 656454988.

It is a super-2 number, since 2×889454656² = 1582259170160156672, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 889454597 and 889454606.

It is not an unprimeable number, because it can be changed into a prime (889454659) 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, 108891 + ... + 116773.

It is an arithmetic number, because the mean of its divisors is an integer number (33041844).

Almost surely, 2^889454656 is an apocalyptic number.

889454656 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 889454656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (925171632).

889454656 is an abundant number, since it is smaller than the sum of its proper divisors (960888608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

889454656 is a wasteful number, since it uses less digits than its factorization.

889454656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7979 (or 7969 counting only the distinct ones).

The product of its digits is 8294400, while the sum is 55.

The square root of 889454656 is about 29823.7263935947. The cubic root of 889454656 is about 961.7036646168.

The spelling of 889454656 in words is "eight hundred eighty-nine million, four hundred fifty-four thousand, six hundred fifty-six".