989289 has 24 divisors (see below), whose sum is σ = 1677312. Its totient is φ = 550080.

The previous prime is 989279. The next prime is 989293. The reversal of 989289 is 982989.

989289 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 989289 - 2¹⁵ = 956521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (989239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2392 + ... + 2774.

It is an arithmetic number, because the mean of its divisors is an integer number (69888).

2⁹⁸⁹²⁸⁹ is an apocalyptic number.

It is an amenable number.

989289 is a deficient number, since it is larger than the sum of its proper divisors (688023).

989289 is a wasteful number, since it uses less digits than its factorization.

989289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 434 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 989289 is about 994.6300819903. The cubic root of 989289 is about 99.6416842987.

It can be divided in two parts, 9 and 89289, that added together give a palindrome (89298).

The spelling of 989289 in words is "nine hundred eighty-nine thousand, two hundred eighty-nine".