689104 has 20 divisors (see below), whose sum is σ = 1438276. Its totient is φ = 317952.

The previous prime is 689093. The next prime is 689107. The reversal of 689104 is 401986.

It can be written as a sum of positive squares in 2 ways, for example, as 384400 + 304704 = 620^2 + 552^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689107) 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, 1449 + ... + 1864.

2⁶⁸⁹¹⁰⁴ is an apocalyptic number.

It is an amenable number.

689104 is an abundant number, since it is smaller than the sum of its proper divisors (749172).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

689104 is a wasteful number, since it uses less digits than its factorization.

689104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3334 (or 3328 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 689104 is about 830.1228824698. The cubic root of 689104 is about 88.3272936023.

The spelling of 689104 in words is "six hundred eighty-nine thousand, one hundred four".