689133 has 4 divisors (see below), whose sum is σ = 918848. Its totient is φ = 459420.

The previous prime is 689131. The next prime is 689141. The reversal of 689133 is 331986.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 689133 - 2¹ = 689131 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 689133.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 689133.

It is not an unprimeable number, because it can be changed into a prime (689131) 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, 114853 + ... + 114858.

It is an arithmetic number, because the mean of its divisors is an integer number (229712).

2⁶⁸⁹¹³³ is an apocalyptic number.

It is an amenable number.

689133 is a deficient number, since it is larger than the sum of its proper divisors (229715).

689133 is a wasteful number, since it uses less digits than its factorization.

689133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229714.

The product of its digits is 3888, while the sum is 30.

The square root of 689133 is about 830.1403495795. The cubic root of 689133 is about 88.3285326294.

The spelling of 689133 in words is "six hundred eighty-nine thousand, one hundred thirty-three".