689323 has 4 divisors (see below), whose sum is σ = 692208. Its totient is φ = 686440.

The previous prime is 689321. The next prime is 689341. The reversal of 689323 is 323986.

It is a happy number.

689323 is nontrivially palindromic in base 15.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 689323 - 2¹ = 689321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1048 + ... + 1573.

It is an arithmetic number, because the mean of its divisors is an integer number (173052).

2⁶⁸⁹³²³ is an apocalyptic number.

689323 is a deficient number, since it is larger than the sum of its proper divisors (2885).

689323 is a wasteful number, since it uses less digits than its factorization.

689323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2884.

The product of its digits is 7776, while the sum is 31.

The square root of 689323 is about 830.2547801729. The cubic root of 689323 is about 88.3366495333.

The spelling of 689323 in words is "six hundred eighty-nine thousand, three hundred twenty-three".