689269 has 4 divisors (see below), whose sum is σ = 787744. Its totient is φ = 590796.

The previous prime is 689267. The next prime is 689279. The reversal of 689269 is 962986.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 689269 - 2¹ = 689267 is a prime.

It is a super-2 number, since 2×689269² = 950183508722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689261) 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, 49227 + ... + 49240.

It is an arithmetic number, because the mean of its divisors is an integer number (196936).

2⁶⁸⁹²⁶⁹ is an apocalyptic number.

It is an amenable number.

689269 is a deficient number, since it is larger than the sum of its proper divisors (98475).

689269 is an equidigital number, since it uses as much as digits as its factorization.

689269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98474.

The product of its digits is 46656, while the sum is 40.

The square root of 689269 is about 830.2222593980. Note that the first 4 decimals coincide. The cubic root of 689269 is about 88.3343427755.

The spelling of 689269 in words is "six hundred eighty-nine thousand, two hundred sixty-nine".