689813384 has 24 divisors (see below), whose sum is σ = 1400548410. Its totient is φ = 318374784.

The previous prime is 689813363. The next prime is 689813393. The reversal of 689813384 is 483318986.

689813384 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 308704900 + 381108484 = 17570^2 + 19522^2 .

It is a super-3 number, since 3×689813384³ (a number of 27 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 253757 + ... + 256460.

Almost surely, 2^689813384 is an apocalyptic number.

It is an amenable number.

689813384 is an abundant number, since it is smaller than the sum of its proper divisors (710735026).

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

689813384 is a wasteful number, since it uses less digits than its factorization.

689813384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510249 (or 510232 counting only the distinct ones).

The product of its digits is 995328, while the sum is 50.

The square root of 689813384 is about 26264.2986580643. The cubic root of 689813384 is about 883.5759211579.

The spelling of 689813384 in words is "six hundred eighty-nine million, eight hundred thirteen thousand, three hundred eighty-four".