989413871 has 8 divisors (see below), whose sum is σ = 1004656800. Its totient is φ = 974274048.

The previous prime is 989413861. The next prime is 989413883. The reversal of 989413871 is 178314989.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 989413871 - 2¹⁰ = 989412847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989413811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6326 + ... + 44931.

It is an arithmetic number, because the mean of its divisors is an integer number (125582100).

Almost surely, 2^989413871 is an apocalyptic number.

989413871 is a deficient number, since it is larger than the sum of its proper divisors (15242929).

989413871 is a wasteful number, since it uses less digits than its factorization.

989413871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51553.

The product of its digits is 435456, while the sum is 50.

The square root of 989413871 is about 31454.9498648464. The cubic root of 989413871 is about 996.4587647893.

The spelling of 989413871 in words is "nine hundred eighty-nine million, four hundred thirteen thousand, eight hundred seventy-one".