989673005 has 8 divisors (see below), whose sum is σ = 1188065400. Its totient is φ = 791433216.

The previous prime is 989673001. The next prime is 989673017. The reversal of 989673005 is 500376989.

It can be written as a sum of positive squares in 4 ways, for example, as 90992521 + 898680484 = 9539^2 + 29978^2 .

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 989673005 - 2² = 989673001 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989673001) 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, 23360 + ... + 50249.

It is an arithmetic number, because the mean of its divisors is an integer number (148508175).

Almost surely, 2^989673005 is an apocalyptic number.

It is an amenable number.

989673005 is a deficient number, since it is larger than the sum of its proper divisors (198392395).

989673005 is a wasteful number, since it uses less digits than its factorization.

989673005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76303.

The product of its (nonzero) digits is 408240, while the sum is 47.

The square root of 989673005 is about 31459.0687242963. The cubic root of 989673005 is about 996.5457502304.

The spelling of 989673005 in words is "nine hundred eighty-nine million, six hundred seventy-three thousand, five".