689047396 has 6 divisors (see below), whose sum is σ = 1205832950. Its totient is φ = 344523696.

The previous prime is 689047379. The next prime is 689047397. The reversal of 689047396 is 693740986.

It can be written as a sum of positive squares in only one way, i.e., 688537600 + 509796 = 26240^2 + 714^2 .

It is not an unprimeable number, because it can be changed into a prime (689047397) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86130921 + ... + 86130928.

Almost surely, 2^689047396 is an apocalyptic number.

It is an amenable number.

689047396 is a deficient number, since it is larger than the sum of its proper divisors (516785554).

689047396 is a wasteful number, since it uses less digits than its factorization.

689047396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172261853 (or 172261851 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 689047396 is about 26249.7123031853. The cubic root of 689047396 is about 883.2487509218.

The spelling of 689047396 in words is "six hundred eighty-nine million, forty-seven thousand, three hundred ninety-six".