989676549 has 32 divisors (see below), whose sum is σ = 1504864000. Its totient is φ = 650641248.

The previous prime is 989676517. The next prime is 989676563. The reversal of 989676549 is 945676989.

It is a happy number.

989676549 is a `hidden beast` number, since 9 + 89 + 6 + 7 + 6 + 549 = 666.

989676549 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 989676549 - 2⁵ = 989676517 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989676349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 156552 + ... + 162750.

It is an arithmetic number, because the mean of its divisors is an integer number (47027000).

Almost surely, 2^989676549 is an apocalyptic number.

It is an amenable number.

989676549 is a deficient number, since it is larger than the sum of its proper divisors (515187451).

989676549 is an frugal number, since it uses more digits than its factorization.

989676549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6293 (or 6275 counting only the distinct ones).

The product of its digits is 29393280, while the sum is 63.

The square root of 989676549 is about 31459.1250514060. The cubic root of 989676549 is about 996.5469397660.

The spelling of 989676549 in words is "nine hundred eighty-nine million, six hundred seventy-six thousand, five hundred forty-nine".