689003 has 4 divisors (see below), whose sum is σ = 787440. Its totient is φ = 590568.

The previous prime is 688999. The next prime is 689021. The reversal of 689003 is 300986.

It is a happy number.

689003 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 689003 - 2² = 688999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (689033) 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, 49208 + ... + 49221.

It is an arithmetic number, because the mean of its divisors is an integer number (196860).

2⁶⁸⁹⁰⁰³ is an apocalyptic number.

689003 is a deficient number, since it is larger than the sum of its proper divisors (98437).

689003 is an equidigital number, since it uses as much as digits as its factorization.

689003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98436.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 689003 is about 830.0620458737. The cubic root of 689003 is about 88.3229780986.

Adding to 689003 its reverse (300986), we get a palindrome (989989).

The spelling of 689003 in words is "six hundred eighty-nine thousand, three".