689884 has 12 divisors (see below), whose sum is σ = 1300264. Its totient is φ = 318384.

The previous prime is 689879. The next prime is 689891. The reversal of 689884 is 488986.

689884 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 689884.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6582 + ... + 6685.

2⁶⁸⁹⁸⁸⁴ is an apocalyptic number.

It is an amenable number.

689884 is a deficient number, since it is larger than the sum of its proper divisors (610380).

689884 is a wasteful number, since it uses less digits than its factorization.

689884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13284 (or 13282 counting only the distinct ones).

The product of its digits is 110592, while the sum is 43.

The square root of 689884 is about 830.5925595621. The cubic root of 689884 is about 88.3606070601.

The spelling of 689884 in words is "six hundred eighty-nine thousand, eight hundred eighty-four".