989673 has 4 divisors (see below), whose sum is σ = 1319568. Its totient is φ = 659780.

The previous prime is 989671. The next prime is 989687. The reversal of 989673 is 376989.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 989673 - 2¹ = 989671 is a prime.

It is a D-number.

It is a Curzon number.

989673 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (989671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164943 + ... + 164948.

It is an arithmetic number, because the mean of its divisors is an integer number (329892).

2⁹⁸⁹⁶⁷³ is an apocalyptic number.

It is an amenable number.

989673 is a deficient number, since it is larger than the sum of its proper divisors (329895).

989673 is a wasteful number, since it uses less digits than its factorization.

989673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 329894.

The product of its digits is 81648, while the sum is 42.

The square root of 989673 is about 994.8230998524. The cubic root of 989673 is about 99.6545748552.

The spelling of 989673 in words is "nine hundred eighty-nine thousand, six hundred seventy-three".