989894068 has 12 divisors (see below), whose sum is σ = 1741886692. Its totient is φ = 492212160.

The previous prime is 989894057. The next prime is 989894069. The reversal of 989894068 is 860498989.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 257217444 + 732676624 = 16038^2 + 27068^2 .

It is a junction number, because it is equal to n+sod(n) for n = 989893997 and 989894015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989894069) 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 3 ways as a sum of consecutive naturals, for example, 682905 + ... + 684352.

Almost surely, 2^989894068 is an apocalyptic number.

It is an amenable number.

989894068 is a deficient number, since it is larger than the sum of its proper divisors (751992624).

989894068 is a wasteful number, since it uses less digits than its factorization.

989894068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1367442 (or 1367440 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 61.

The square root of 989894068 is about 31462.5820300877. The cubic root of 989894068 is about 996.6199440942.

The spelling of 989894068 in words is "nine hundred eighty-nine million, eight hundred ninety-four thousand, sixty-eight".