989369 has 4 divisors (see below), whose sum is σ = 1002996. Its totient is φ = 975744.

The previous prime is 989353. The next prime is 989377. The reversal of 989369 is 963989.

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 672400 + 316969 = 820^2 + 563^2 .

It is a cyclic number.

It is not a de Polignac number, because 989369 - 2⁴ = 989353 is a prime.

It is a super-2 number, since 2×989369² = 1957702036322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (989309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6704 + ... + 6849.

It is an arithmetic number, because the mean of its divisors is an integer number (250749).

2⁹⁸⁹³⁶⁹ is an apocalyptic number.

It is an amenable number.

989369 is a deficient number, since it is larger than the sum of its proper divisors (13627).

989369 is a wasteful number, since it uses less digits than its factorization.

989369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13626.

The product of its digits is 104976, while the sum is 44.

The square root of 989369 is about 994.6702971337. The cubic root of 989369 is about 99.6443701064.

The spelling of 989369 in words is "nine hundred eighty-nine thousand, three hundred sixty-nine".