689030 has 8 divisors (see below), whose sum is σ = 1240272. Its totient is φ = 275608.

The previous prime is 689021. The next prime is 689033. The reversal of 689030 is 30986.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an Ulam number.

It is a Curzon number.

It is a congruent 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, 34442 + ... + 34461.

It is an arithmetic number, because the mean of its divisors is an integer number (155034).

2⁶⁸⁹⁰³⁰ is an apocalyptic number.

689030 is a deficient number, since it is larger than the sum of its proper divisors (551242).

689030 is a wasteful number, since it uses less digits than its factorization.

689030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68910.

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

The square root of 689030 is about 830.0783095588. The cubic root of 689030 is about 88.3241317894.

The spelling of 689030 in words is "six hundred eighty-nine thousand, thirty".