689800940 has 24 divisors (see below), whose sum is σ = 1449079632. Its totient is φ = 275825600.

The previous prime is 689800939. The next prime is 689800967. The reversal of 689800940 is 49008986.

689800940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 689800891 and 689800900.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99590 + ... + 106290.

It is an arithmetic number, because the mean of its divisors is an integer number (60378318).

Almost surely, 2^689800940 is an apocalyptic number.

It is an amenable number.

689800940 is an abundant number, since it is smaller than the sum of its proper divisors (759278692).

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

689800940 is a wasteful number, since it uses less digits than its factorization.

689800940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11857 (or 11855 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 689800940 is about 26264.0617574662. The cubic root of 689800940 is about 883.5706079890.

The spelling of 689800940 in words is "six hundred eighty-nine million, eight hundred thousand, nine hundred forty".