689307 has 4 divisors (see below), whose sum is σ = 919080. Its totient is φ = 459536.

The previous prime is 689291. The next prime is 689309. The reversal of 689307 is 703986.

It is a happy number.

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 689307 - 2⁴ = 689291 is a prime.

It is a D-number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 689307.

It is not an unprimeable number, because it can be changed into a prime (689309) 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, 114882 + ... + 114887.

It is an arithmetic number, because the mean of its divisors is an integer number (229770).

2⁶⁸⁹³⁰⁷ is an apocalyptic number.

689307 is a deficient number, since it is larger than the sum of its proper divisors (229773).

689307 is a wasteful number, since it uses less digits than its factorization.

689307 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229772.

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 689307 is about 830.2451445206. The cubic root of 689307 is about 88.3359660621.

The spelling of 689307 in words is "six hundred eighty-nine thousand, three hundred seven".