984089 has 4 divisors (see below), whose sum is σ = 1010724. Its totient is φ = 957456.

The previous prime is 984083. The next prime is 984091. The reversal of 984089 is 980489.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 883600 + 100489 = 940^2 + 317^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-984089 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (984083) 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, 13262 + ... + 13335.

It is an arithmetic number, because the mean of its divisors is an integer number (252681).

2⁹⁸⁴⁰⁸⁹ is an apocalyptic number.

It is an amenable number.

984089 is a deficient number, since it is larger than the sum of its proper divisors (26635).

984089 is a wasteful number, since it uses less digits than its factorization.

984089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26634.

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 984089 is about 992.0126007264. The cubic root of 984089 is about 99.4667953141.

Subtracting from 984089 its reverse (980489), we obtain a square (3600 = 60²).

The spelling of 984089 in words is "nine hundred eighty-four thousand, eighty-nine".