689882669 has 16 divisors (see below), whose sum is σ = 813170688. Its totient is φ = 572996592.

The previous prime is 689882639. The next prime is 689882681. The reversal of 689882669 is 966288986.

689882669 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-689882669 is a prime.

It is a super-3 number, since 3×689882669³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (689882629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29204 + ... + 47250.

It is an arithmetic number, because the mean of its divisors is an integer number (50823168).

Almost surely, 2^689882669 is an apocalyptic number.

It is an amenable number.

689882669 is a deficient number, since it is larger than the sum of its proper divisors (123288019).

689882669 is a wasteful number, since it uses less digits than its factorization.

689882669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18224.

The product of its digits is 17915904, while the sum is 62.

The square root of 689882669 is about 26265.6176207604. The cubic root of 689882669 is about 883.6055023507.

The spelling of 689882669 in words is "six hundred eighty-nine million, eight hundred eighty-two thousand, six hundred sixty-nine".