989093680 has 40 divisors (see below), whose sum is σ = 2311236000. Its totient is φ = 393643008.

The previous prime is 989093663. The next prime is 989093681. The reversal of 989093680 is 86390989.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (989093681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15145 + ... + 46984.

It is an arithmetic number, because the mean of its divisors is an integer number (57780900).

Almost surely, 2^989093680 is an apocalyptic number.

It is an amenable number.

989093680 is an abundant number, since it is smaller than the sum of its proper divisors (1322142320).

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

989093680 is a wasteful number, since it uses less digits than its factorization.

989093680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62341 (or 62335 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 52.

The square root of 989093680 is about 31449.8597771119. The cubic root of 989093680 is about 996.3512629099.

The spelling of 989093680 in words is "nine hundred eighty-nine million, ninety-three thousand, six hundred eighty".