689117 has 16 divisors (see below), whose sum is σ = 833280. Its totient is φ = 561600.

The previous prime is 689113. The next prime is 689131. The reversal of 689117 is 711986.

It is not a de Polignac number, because 689117 - 2² = 689113 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689113) 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 15 ways as a sum of consecutive naturals, for example, 8684 + ... + 8762.

It is an arithmetic number, because the mean of its divisors is an integer number (52080).

2⁶⁸⁹¹¹⁷ is an apocalyptic number.

It is an amenable number.

689117 is a deficient number, since it is larger than the sum of its proper divisors (144163).

689117 is a wasteful number, since it uses less digits than its factorization.

689117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164.

The product of its digits is 3024, while the sum is 32.

The square root of 689117 is about 830.1307125989. The cubic root of 689117 is about 88.3278490326.

The spelling of 689117 in words is "six hundred eighty-nine thousand, one hundred seventeen".