689759916 has 24 divisors (see below), whose sum is σ = 1615257840. Its totient is φ = 229088832.

The previous prime is 689759911. The next prime is 689759923. The reversal of 689759916 is 619957986.

689759916 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 689759916.

It is not an unprimeable number, because it can be changed into a prime (689759911) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100431 + ... + 107078.

It is an arithmetic number, because the mean of its divisors is an integer number (67302410).

Almost surely, 2^689759916 is an apocalyptic number.

It is an amenable number.

689759916 is an abundant number, since it is smaller than the sum of its proper divisors (925497924).

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

689759916 is a wasteful number, since it uses less digits than its factorization.

689759916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207793 (or 207791 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 60.

The square root of 689759916 is about 26263.2807546963. The cubic root of 689759916 is about 883.5530916704.

The spelling of 689759916 in words is "six hundred eighty-nine million, seven hundred fifty-nine thousand, nine hundred sixteen".