689338 has 8 divisors (see below), whose sum is σ = 1113588. Its totient is φ = 318144.

The previous prime is 689321. The next prime is 689341. The reversal of 689338 is 833986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 597529 + 91809 = 773^2 + 303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 689297 and 689306.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13231 + ... + 13282.

2⁶⁸⁹³³⁸ is an apocalyptic number.

689338 is a deficient number, since it is larger than the sum of its proper divisors (424250).

689338 is a wasteful number, since it uses less digits than its factorization.

689338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26528.

The product of its digits is 31104, while the sum is 37.

The square root of 689338 is about 830.2638134954. The cubic root of 689338 is about 88.3372902780.

The spelling of 689338 in words is "six hundred eighty-nine thousand, three hundred thirty-eight".