989452868 has 12 divisors (see below), whose sum is σ = 1743010752. Its totient is φ = 491449800.

The previous prime is 989452859. The next prime is 989452897. The reversal of 989452868 is 868254989.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 818480 + ... + 819687.

It is an arithmetic number, because the mean of its divisors is an integer number (145250896).

Almost surely, 2^989452868 is an apocalyptic number.

It is an amenable number.

989452868 is a deficient number, since it is larger than the sum of its proper divisors (753557884).

989452868 is a wasteful number, since it uses less digits than its factorization.

989452868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1638322 (or 1638320 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 59.

The square root of 989452868 is about 31455.5697452772. The cubic root of 989452868 is about 996.4718561737.

The spelling of 989452868 in words is "nine hundred eighty-nine million, four hundred fifty-two thousand, eight hundred sixty-eight".