689313276 has 36 divisors (see below), whose sum is σ = 1745066232. Its totient is φ = 229423584.

The previous prime is 689313271. The next prime is 689313301. The reversal of 689313276 is 672313986.

689313276 is a `hidden beast` number, since 68 + 9 + 313 + 276 = 666.

689313276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689313271) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10231 + ... + 38513.

It is an arithmetic number, because the mean of its divisors is an integer number (48474062).

Almost surely, 2^689313276 is an apocalyptic number.

It is an amenable number.

689313276 is an abundant number, since it is smaller than the sum of its proper divisors (1055752956).

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

689313276 is a wasteful number, since it uses less digits than its factorization.

689313276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28970 (or 28965 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 689313276 is about 26254.7762511890. The cubic root of 689313276 is about 883.3623415496.

The spelling of 689313276 in words is "six hundred eighty-nine million, three hundred thirteen thousand, two hundred seventy-six".