889488684 has 72 divisors (see below), whose sum is σ = 2580832800. Its totient is φ = 253032192.

The previous prime is 889488659. The next prime is 889488689. The reversal of 889488684 is 486884988.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (889488689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51142 + ... + 66290.

It is an arithmetic number, because the mean of its divisors is an integer number (35844900).

Almost surely, 2^889488684 is an apocalyptic number.

889488684 is a gapful number since it is divisible by the number (84) 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 889488684, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1290416400).

889488684 is an abundant number, since it is smaller than the sum of its proper divisors (1691344116).

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

889488684 is a wasteful number, since it uses less digits than its factorization.

889488684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15399 (or 15394 counting only the distinct ones).

The product of its digits is 28311552, while the sum is 63.

The square root of 889488684 is about 29824.2968735224. The cubic root of 889488684 is about 961.7159284741.

The spelling of 889488684 in words is "eight hundred eighty-nine million, four hundred eighty-eight thousand, six hundred eighty-four".